I’ve been considering enlisting for a while for many reasons but one of them is for the GI Bill. I understand that 3 years gets you the full benefit of it but I was once told it could only be used for a first time undergrad degree? Is this true? I have a BA and was hoping I could potentially use it for law school in the future.

Also is there any sort of “fine print” stuff that could potentially exclude me from the GI Bill despite joining? Or is every service member entitled to it? Thanks for any info!