I'm not opposed to intervention by any standards. Indeed there are many occasions where the world has simply ignored tragedy - Rwanda being the most obvious, and one of the darker stains on the Clinton administration. I don't accept that very Trot opinion that contemporary world politics is merely the bogeyman imperialist America and her pawns (NATO, the GCC, Japan, S. Korea, Australia) undermining the practically inert victims of Russia, China and Iran. I think America is, or at least has the potential to be, a force for good. It fought the greatest evil the twentieth century has known after all, and even though the Cold War took America down some dark paths in Latin America, SE Asia, South Africa and the Middle East, it was undoubtedly the moral of the two opposing sides. But post-Cold War America's overall "mission" has been largely disjointed. Syria and Iraq are basically two all-encompassing sources of eggs on Western faces. America is led around by its nationalistic and self-interested allies across the globe (it makes me laugh at the idea of the U.S. being some master puppet master - it's more like a dogwalker with far too many dogs)
I'll admit a lot of the Pentagon budget can be shredded off the bat. The nuclear arms program could easily be downsized for one (why the U.S. continues to have ICMB's I'll never know).
While I don't know if there are ever times when I could support war at all, I do appreciate the fact that some positions, like yours, are closer to mine than the insanity of some people who lean toward a more aggressive and even perhaps nationalistic type of foreign policy. Call me an idealist, but more co-operation with other nations and less rigid ideology should be the basis for foreign policy. World government isn't coming any time soon and it probably wouldn't work anyway at this point in our history given the diametrically opposing philosophies of so many nations, but it seems to me that making an argument based on erring on the side of peace is more tenable than one erring on the side of war.