Bi-Polar Bear wrote:now if you will tell me why they were moral...
 
Tragically sad that you need to ask, but:
1.  Afghanistan:  To avenge 9/11 and to attack Al Qaeda
2.  WW2:  To fight the Axis powers, e.g. Hitler, Mussolini, etc.
3.  American Revolution:  To win the right to be governed by our elected representatives and not the British Parliament.