Even though I've taken courses in the Constitution at a major law school, I must have skipped class when we covered the part that states what you said. Please point me to the section that says that use of our armed forces requires a Declaration of War.
I'm quite sure that you can't do it, because it's not there. Only Congress can declare war, but there is nothing that requires them to do so before our troops are employed.
Before you lecture me about disregarding the Constitution, please read it yourself.
The only proper use of the military is listed in the Constitution. According to it, there are only three legitimate uses of the military. If it isn't listed then it isn't authorized.
To provide for calling forth the Militia to execute the Laws of the Union, suppress Insurrections and repel Invasions;
And you're correct. There is no requirement that war be declared. But the President isn't the commander in chief until and unless the Militia is called forth.
Section. 2. The President shall be Commander in Chief of the Army and Navy of the United States, and of the Militia of the several States, when called into the actual Service of the United States
Sending soldiers for "humanitarian" purposes overseas is not authorized. Sending them abroad to make war is not authorized either. They are only authorized for use upon our own soil. OR do you dispute that the Constitution says that specifically?
Now then, the militia act gave the President the power to call up the militia in certain circumstances. Basically only when Congress cannot be convened. And even then for a very short period of time (30 days). And furthermore only when we are in danger of being invaded.
There are ZERO authorizations anywhere in the Militia act or the constitution which allow for the invasion of another country and I defy you to find it.