Is USAA Banking Required For Military Members?

I feel like it's not but I swear I've heard it is before? Anyways I'm shipping to basic on April 10th and just wondering if it's required? Also what benefits do you get with USAA that other banks don't offer? Currently I'm with Wells Fargo and I feel like I should move to USAA due to it being just for military members retired and active and that they'd be a lot easier to bank with since all they do is deal with military members.