In this fanfiction, perhaps Ahsoka could share her unique combat skills with the US military. She might teach them some of her lightsaber techniques in a symbolic way, adapted to modern military training concepts.
The main characters would be Ahsoka and probably a military strategist. The strategist would be constantly trying to figure out how to best utilize Ahsoka's skills within the military framework. And Ahsoka would be trying to understand the military's way of doing things, leading to a lot of interesting interactions between the two. There could also be a young soldier who looks up to Ahsoka as a mentor figure in the story.
In this fanfiction scenario, Ahsoka meeting Krell's men could lead to a lot of interesting plot developments. Maybe she tries to understand their motives under Krell's command. She might even attempt to turn them against Krell if she discovers his true nature. It could be a story full of action, with Ahsoka using her combat skills to gain their respect and then persuade them to do the right thing.
They would probably start by observing. The military is trained to gather intelligence. So, they'd watch how the locals interact, their social hierarchies, and religious beliefs. For example, if there's a taboo about certain colors, they'd make sure not to use those colors in their equipment or uniforms to avoid causing offense.
They might start off warily. Galen, being used to the ways of the Sith, would be cautious around Ahsoka, a Jedi. Ahsoka, on the other hand, would be on guard but also curious about Galen. Eventually, they could start to exchange combat techniques and stories of their past experiences.
Obviously, Luke Skywalker and Ahsoka Tano are the main characters. Luke is a key figure in the fight against the Empire and in the revival of the Jedi Order. Ahsoka, on the other hand, has a long and complex history within the Star Wars universe, having been Anakin Skywalker's apprentice and later becoming a key figure in her own right.
It could be a new Sith Lord. This Sith Lord has been secretly amassing power in the shadows and now aims to destroy the last remnants of the Jedi. His dark powers pose a great threat to Rey and Ahsoka, and they must use all their skills and the Force to defeat him.
Perhaps it's a story where Rey and Ahsoka team up to fight a new threat. The galaxy is in danger once again, and their combined skills and different perspectives on the Force make them a formidable duo. They journey across different planets, encountering various obstacles along the way, and in the process, Rey learns a great deal from Ahsoka about combat and strategy.
Well, it could be that Anakin and Ahsoka meet in a dangerous situation in the fanfiction. They would then have to work together to get out of it. For example, they might be trapped on an unknown planet filled with hostile creatures. They'd use their combined skills, Anakin's raw power and Ahsoka's agility, to fight their way through and find a way back home. This kind of scenario would not only show their relationship but also their growth as characters since they last parted ways.