In his 1980 book, Expanded Universe, Robert A. Heinlein commented on the subject which has an interesting impact today. The book is a set of predictions he made in the past, then updated more recently. In 1950 he predicted that, "It is utterly impossible to United States will start a 'preventative war'. We will fight when attacked, either directly or in a territory we have guaranteed to defend. In 1965, he modified his position in regard to some aspects but not in regard to the key point that we would never start a preventative war. In 1980, he further modified some elements of his position, but once again let stand the statement that the United States would never attack another nation unless we were directly attacked, or an area we were obligated to defend was attacked first.
This was a matter of honor for the United States for well over its first 200 years of existence. When George Bush became President, things changed. We have now engaged in the utterly dishonorable and historically un-American act of striking at another nation which was not a threat to us in a preemptive war. Add the to this the issues of torture and war crimes in general, and we see just how far America's honor has been degraded under the leadership of George W Bush.
As we remain entangled in Afganistan and Iraq, many are calling for another war in Iran and some, following the lead of Sen. McCain, also want military intervention in Syria! Have we learned nothing from the adventures of the junior Bush? Apparently not!
It is interesting that the comment directly above this one demonstrates that in 1950 Mr. Heinlein declared that, "The most important military fact of this century is that there is no way to repel an attack from outer space. Too bad Mr. Reagan hadn't read this sentence. It might have changed history and done a lot to end the Cold War a few years sooner.