Our 2 machines were doing a Recon at the front when bullets ripped into my kite. 2 Un seen monoplanes had sneaked up behind us and was letting loose a torrent of slugs. My ride took 7 rds mostly holes but one caused fuel to leak, The motor stopped and I faked a spin to shake off the Huns, Landing near Rail road tracks My Ob set out for a farm in the distane to call for help. I found out later that my wing mate was chased off the Recon Hq was not happy.