NO!!! Every war since WW2 has been illegal by our laws and constitution. Anyone who takes an oath to defend our constitution and participates in non-defensive war is a traitor to it. Anyone who participates in an illegal war is by definition a war criminal. Would YOU participate in an illegal, unconstitutional war? Our troops are bound by their own universal code to refuse illegal orders. 
ALL orders given in illegal wars are illegal. "I was only following orders" didn't save Nazis from the gallows and it shouldn't save U.S. troops who oppose our constitution and commit crimes. All acts performed "in service" to illegal wars ARE crimes. Did you commit acts that violated our constitution by participating in illegal wars like the above? Shame, shame, shame.