What was the origin of the orcs in the Lord of the Rings? I want more details

The Orcs in the Lord of the Rings referred to the half-elves and half-orcs from Middle-earth. They were originally a multiculturalized group living in every corner of Middle-earth. In the story of the Hobbits, the Orcs once led a powerful army to resist the tyranny of Sauron and played an important role in the battle. The history of the orcs could be traced back to thousands of years ago, when the elves, dwarves, and humans of Middle-earth fell into a long-term civil war. In this war, many orc tribes joined the elves and supported Soran's alliance. There were many different races and genes in these orc tribes, including orcs, trolls, tauren, and werewolves. In the stories of the Hobbits, the origin of the Half-Orcs could be traced back to some powerful leaders such as the Orcs, Galleons, and Brokhar Orcs. These leaders played an important role in the war and established some powerful tribes. As time passed, the orc tribe's scale and strength continued to expand, becoming one of the most powerful races in Middle-earth. In the Lord of the Rings, the Orc society and culture were different from other races. They usually lived in stables rather than in cities or towns like other races. The language and cultural traditions of the orcs were different from other races. They used the orc language to communicate and had some unique customs and traditions. Orcs had experienced many wars and conflicts in history and played an important role in the Lord of the Rings. They were a race with a rich culture and history that had a profound influence on the story of the Lord of the Rings and the history of Middle-earth.