Because DFW is a large military trainsit for overseas flights, I have been on many planes reciently that have military animals on. In fact I was stuck in a middle seat and had a very nice german shepard under the aisle seat next to me. (no cage) Had a great conversation with the young man. The dog goes everywhere he goes. Better behaved than most children or adults on the flight. Also very interesting when I tried to slip him some items from AA's SnAAck box he refused. Very smart dog.