I was out side and i looked up and saw this strange object flying about 100 feet behind a military transport plane,. I first thought it was a small single engine plane but then i realized they dont fly that fast. it then proceded to shoot a short trail out the back and cought right up to the large plane. it was basicly on top of it and it then went behind the tree line and i couldnt see it anymore. I felt excited that i saw a ufo!