Wondering about Military knives.

Hi, I am wanting to invest in a good military type knife. If it is made in the U.S.A. and not military that would work too. I have a budget of about $50 and wanting a fixed blade kind of like http://www.amazon.com/Rothco-Seals-Combat-Knife-Black/dp/B000PU37DM because I want to be a Navy SEAL one day. so send me links of knives that meet my specs. Thanks.