The protagonist flies to the immortal world with modern weapons and meets the Americans who open the passage to the immortal world and start a war.

I don't think it'll necessarily meet your needs, but I'll try my best to recommend a novel that's most relevant to your description: The History of the Struggles of Special Forces in the Immortal World. This book is a fantasy immortal cultivation novel written by the author, Bu Shi Yuan Fang. The general plot of this novel is: What if the special forces soldier transmigrated to the cultivation world? Magic weapons are my guns, talismans are my ammunition. I'm invincible with my sword and my sword. No matter how many tricks you use, If you're not convinced, come and fight! ---------------------------- The Immortal World's Munitions Factory was a sci-fi novel written by the author, I Am Old Jiang. The general plot of this novel was: The Blue Planet was destroyed by the self-cultivators. He was reborn in the world of self-cultivators and activated the high-tech system, vowing to avenge the people of the Blue Planet. Hardcore sci-fi vs Xianxia, bullets attacking protective zhenqi, nuclear bombs attacking immortal arrays, Gundam VS magical beasts, everything was different. ---------------------------- The War of Worlds was a Xianxia-Mythological Cultivation novel written by the author, Wu En. The general plot of the novel was: The story was that the high-level Xianxia Warring States World invaded the myriad worlds and colonized the galaxy! ---------------------------- The book " The Strongest Berserker " was a fantasy novel written by the author Red Dust Alchemist. The general plot of this novel was: A modern military research genius and a mysterious falling object from the sky had transmigrated to a world of cultivation that was strictly hierarchical. They had to dominate the system. He activated Super Creation, Duplication, Scanning, and analyzed the divine powers and techniques of the Great Immortals on the spot. With his violent talent, he stepped on peerless geniuses and indulged in flowers. For his ambition, he overturned the rules of the immortal and divine worlds. For his beauty, he trampled on the old antiques of cultivation. For his beauty, he bombarded the immortal sects and devil sects. He rose up in a different world and defied the heavens. He became the only one in the nine heavens and ten lands. How could a country's prime minister with thousands of troops be a match for the bombs in his courtyard? It was better to create thousands of rare medicines with a single copy than to dominate the Pill Kings of the Seven Countries. It was hard to predict when the cannonball would land on his head. How could the ancient sect in the mountains that was covered by the immortal array block the bombardment of missiles and artillery? Heavenly soldiers and divine generals, even if they set up an inescapable net, they would still be unable to stop the Lord of Flames. ---------------------------- " The Wild Immortal World " was a fantasy and oriental fantasy novel written by the author, Internet Black Man. The general plot of this novel was: The power from the Demon Realm forcefully tore the sky between the human world and the Demon Realm, opening the passage between the two worlds-the Eye of Heaven! The dense army of demon beasts fell down from the Dual World Mountain like a meteor shower, and the major sects all raised the flag to save the human race from danger and built a defense line of flesh and blood, starting a war with the demon race that had lasted for hundreds of years. When the war was in full swing, a transmigrator from the Purple Cloud Town accidentally barged into the Dual World Mountain… ---------------------------- " The Modern War of the Three Realms " was a fantasy novel written by the author, Gunsan Ting. The general plot of the novel was: From ancient times to the present, what do people want to do in life? There was no end to war, only for one place, immortals and devils were no exception. Heart cultivation… Self-cultivation… Soul cultivation… Whether it was humans, immortals, or devils, they only wanted to survive! Here! It was an ancient cultivation world… For the modern technological world… It was beyond imagination that there was no organic world… ---------------------------- " The Seven Worlds War Immortal " was a fantasy novel written by the author, the Handsome Fingers. The general plot of this novel was: 10,000 years ago, the path to immortality collapsed, separating immortals and mortals forever. 10,000 years later, a young man with a sapling of the World Tree rose from the Divine Martial Sect. He cultivated the Primordial Demon Body and became a Saint with his physical body. He was invincible in the world. ---------------------------- The book 'Immortal Martial Battle Emperor' was a fantasy novel written by the author. The general plot of this novel was: [The latest fantasy novel, beautiful readers, please update!] Cultivate martial arts, cultivate the Sea of Qi, fight the nine heavens and ten lands, and finally become the pinnacle of the world. In the myriad worlds, only I will not be defeated! ---------------------------- " The First Sword of the Cultivation Civilization " was a Xianxia-Cultivation Civilization novel written by the author, Immortal Emperor Purple Qi. The general plot of the novel was: [Return of the Strongest Immortal Emperor in 2019] After millions of years, the human civilization expanded to the entire Milky Way and waged a war with the Fairy Galaxy civilization that lasted for more than a thousand years. In a corner of the Milky Way, the origin of human civilization, Earth. Zi Yao Immortal Emperor Xu Feng had crossed worlds and was reborn. Three steps to Foundation Establishment, five steps to Nascent Soul, and ten steps to Mahayana. The sword swept across the endless starry sky, saved the civilization of mankind, ascended to the peak of the universe, and overlooked the myriad worlds! ---------------------------- The book " Bringing the Armory to the Other World " was written by the author, Liang Liang. It was a fantasy novel about immortal cultivation. The general plot of this novel was: The first gun was all equipment! As a special forces soldier, Liu Yan traveled through the world of cultivation and obtained the modern arsenal system. "What?" Heavenly Emperor, take this S686!" "What?" The sect protection immortal array, eat my Patriot missile!" Liu Yan: " You fight with metaphysics, I fight with science!"

" Flying Fairy of the Mortal World " was a Xianxia novel, and the main character was Jiang Ping 'an. Jiang Ping 'an was an ordinary rural youth. He had accidentally obtained a treasure bowl. With his ability to replicate, he had obtained a huge amount of resources and embarked on the path of cultivation. In the novel, Jiang Ping 'an swallowed a pill, and the immortal seed that was connected to the source of life emitted a dazzling white light, becoming like the sun that illuminated the world. He had also condensed the laws of Fighting Intent on the immortal seed. He would condense the immortal root of whatever domain he had mastered. In addition, Jiang Ping 'an also injected all his power into the Judge Brush. He waved the dazzling golden light and displayed the terrifying power of the Great Dao. The novel also involved the love story between Jiang Ping 'an and Li Yueyue. In short," Flying Fairy of the Mortal World " described the path of an ordinary youth. He relied on the treasure bowl and the ability to copy to obtain powerful resources and strength, and began his journey of cultivation.

The conflict between the two worlds was mainly due to the competition for resources and the expansion of territory. To be specific, there were differences in ideals, beliefs, and cultures between the Inner and Outer Realms. Coupled with the unclear boundaries and rules between the two, the conflict between the two sides over resources and territory gradually escalated, and eventually a war broke out. The Outer World attacking the Inner World might also involve some personal grudges and disputes of interest, but the specific details needed to be read further to get an accurate answer.

😋I recommend the following novels to you: 1. [Supreme Mortal Flow]: The realms are divided into Qi Refinement-Mahayana, and the weapon level is a magic tool-Profound Heaven Spirit Treasure. 2. [Nine Heavens Sword Saint: The realms are divided into Qi Condensation-Mahayana, and the weapon is a divine weapon.] 3. " Legend of the Peerless Immortal Venerable ": The realms are divided into the cultivation realm and the immortal realm. The levels of immortals and immortal venerables are low, medium, high, and supreme. The levels of weapons are treasured weapons, spiritual weapons, immortal weapons, and divine weapons. The above is my personal recommendation. I hope you will like my recommendation. If you need more choices, please provide more information for me to recommend.

In the novel setting of the perfect world, the weapons of the Immortal King were usually very powerful, precise, and lethal weapons that could give them great combat power and survivability. The following were the main weapons of the Immortal Kings in the perfect world: [1. Sword of Infinity: One of the Immortal Kings of the Perfect World wields a longsword called the Sword of Infinity. This sword possesses unparalleled strength and precision, and can easily cut through metal and solid objects.] 2. Eternal Shield: One of the Immortal Kings uses a giant shield called the Eternal Shield to block attacks from all sides and provide a powerful defense for the Immortal King in battle. 3. Hammer of Divine Silence: One of the Immortal Kings uses a giant hammer called the Hammer of Divine Silence. This hammer has great strength and precision, and can easily break through all obstacles. Axe of Chaos: One of the Immortal Kings uses a giant axe called the Axe of Chaos. This axe has extremely powerful attack power and destructive power. It can easily cut through metal and physical objects. 5. Endless Blade: One of the Immortal Kings uses a giant dagger called the Endless Blade. This blade has powerful attack power and cutting power that can cut through all enemies in an instant. These are the main weapons of the Immortal Kings in the perfect world. These weapons possess extremely powerful strength and precision, which can provide the Immortal King with powerful combat strength and survivability.

There was a great war between the Demon Realm and the Immortal Realm. In some novels and games, the battle between the demon world and the immortal world was a common plot. However, these search results did not provide specific details or results about the war between the demon world and the immortal world. Therefore, we are unable to determine the exact situation of the war between the Demon Realm and the Immortal Realm. While waiting for the TV series, he could also click on the link below to read the classic original work of " The Legend of Mortal Cultivation "!

The main character of the ❮ Mortal Cultivation Legend of the Immortal World ❯ was Han Li. While waiting for the TV series, he could also click on the link below to read the classic original work of " The Legend of Mortal Cultivation "!

" I Run a Farm in the Immortal World " was a Xianxia web novel that was published on Qidian Chinese website. The author was Gentleness in Steel Gun. The novel told the story of a modern person who transmigrated to the Xianxia world and used modern technology to open a farm in the immortal world. The protagonist of the novel was called Lin Feng. He was originally a modern man who accidentally transmigrated to the Xianxia world. In this world, the Immortal Cultivators could improve their strength by practicing magical techniques and magical equipment, but Lin Feng didn't have the talent for cultivation. In order to survive, he could only rely on his own wisdom and modern technology to make a living. By chance, Lin Feng found a kind of soil that could be used to grow spiritual herbs. He used this soil to grow some spiritual herbs and sold them to immortal cultivators, earning a considerable income. From then on, Lin Feng started his farm in the Immortal World, planting all kinds of spiritual herbs and elixirs. He kept researching and improving the planting techniques, making his farm bigger and more prosperous. In the novel, not only did Lin Feng show his business acumen and planting skills, but he also made many Immortal Cultivator friends. They wandered in the Immortal Realm together and experienced many dangers and challenges. At the same time, Lin Feng gradually revealed some secrets and conspiracies in the Immortal World, paving the way for the future of himself and his friends. " I Run a Farm in the Immortal World " was a very interesting novel. It combined the elements of Xianxia and farming, allowing the readers to feel a different Xianxia world. At the same time, Lin Feng, the protagonist of the novel, also left a deep impression on people. His intelligence, wisdom, courage, and fearlessness were admirable. If you like xianxia novels, then this novel is definitely worth reading. While waiting for the TV series, he could also click on the link below to read the classic original work of " The Legend of Mortal Cultivation "!

The following are some recommendations from cultivation novels that describe the mortal world, the immortal world, and the immortal world: 1. [Mortal Cultivation: Immortal World Chapter]: This novel tells the story of a mortal Han Li in the Immortal World. He went from mortal cultivation to Golden Immortal Grand Unity, then to the cultivation journey of the 3,000 Great Daos of the Great Firmament Daofather. 2. The main character, Ye Yan, underwent heaven-defying cultivation in the cultivation world, the immortal world, and the divine world, becoming a powerful cultivator. 3. "Limitless Incipient God": The main character Ye Tianfan was born with a useless body of the five elements. However, he used a mysterious item to rise in the cultivation world, the Immortal World, and the God World. Eventually, he became a god-level existence. These novels all covered plots from the mortal world to the immortal world and then to the divine world. They were full of adventures and stories of growth. I hope these recommendations will meet your needs.

Here are a few recommendations for novels about the protagonist's rebirth in the immortal world: 1. < Return of the Cultivation World >: The main character, Lin Feng, is a carefree True Immortal King in the cultivation world. After transcending the tribulation, he returns to the city and faces various dangers. This novel was a supernatural novel. 2. The main character is a reborn person. He cultivates immortality in urban life and experiences various challenges and adventures. This novel was about urban life. 3. " True Immortal of the First Stage ": The protagonist, the good-for-nothing, Alo, experienced hardships on the path of immortal cultivation. However, he possessed the peerless treasure, the Fake Pearl, and the possession of the skeleton soldiers, becoming a unique existence in the immortal cultivation world. 4. " The All-rounded Celestial in the Galaxy ": The story of the female protagonist's counterattack and becoming the All-rounded Celestial. It combined immortal cultivation and sci-fi elements to tell her adventures and growth in the galaxy. These novels were all based on the protagonist's rebirth in the immortal world. Each book had a different storyline and setting, which could satisfy the readers 'needs for immortal cultivation novels.