i don't even know the words to describe it. >> reporter: so kayton joined veterans against isis. of two dozen warriors selected from applicants across the country. they've raised thousands of dollars in their communities and online for airfare and supplies. they plan to join kurdish militia fighters based in northern iraq. >> we've got marines, we've got air force guys you know we've got army guys. each of us can pass on the knowledge that we've learned. >> reporter: it's been nine years since kayton has been a full-time soldier. when he left iraq in 2006, a civil war was raging. he believe the u.s. decision to pull out hurt any prospects for peace. >> i do believe we left too soon. we left a power vacuum, and i think that has caused things to be worse for the people. >> what drives you to do this? >> i know that i can help and, you know, i want to set an example, i mean for my family, for my friends, for my kids. i want them to understand there's stuff that's bigger than just you. >> reporter: like preserving the future fur for his two young sons. >> if we don't deal with this e

: in this tiny west virginia town nestled deep in the mountains, 35-year-old army veteran charlie kaytonring for war. he's about to return to iraq to fight against isis. what do people here think about the fact that you're going over to fight isis? >> it's a mix between i can see you doing that and you're crazy. >> you're crazy. >> you're crazy. that's a lot more common. >> reporter: for caton the mission is anything but crazy. he did two years in iraq as a front line medic as he watched americans die in places like ramadi and fallujah. seeing isis take control of those hard fought up tos make it is personal. >> i cannot believe i saw them driving down the streets flying their flags in a city american soldiers died to secure. i don't even know the words to describe it. >> reporter: so caton joined veterans against isis. he's one of two dozen warriors selected from applicants across the country. they've raised thousands of dollars in their communities and online for airfare and supplies. they plan to join kurdish militia fighters based in northern iraq. >> we've gamma reens, we've got air