[toyboy]

Powers of Congress.

Nowhere in that does it say 'congress is required to declare war', nor does it even say 'how to declare war'. However, the constitution does explicty give congress the power to make laws regulate all the powers of the federal govt (like the war powers act).

You are stretching if you think giving congress the power to declare war, limits them to only being able to make war under a formal declaration. The only think it does it limit everyone else from declaring war.