If the US administration still considers itself bound to the Constitution, it cannot consider an act of war without a Congressional declaration. But then, the US hasn't fought a declared war since WW2. Korea, Vietnam, Grenada, Somalia, Libya, Iran, Iraq, Kuwait, Afghanistan... all "police actions" rather than legally declared wars.

I voted "hands off" because the Congress hasn't taken up the issue. I think the US should protect it's friends and allies, but not in the same unconstitutional way we've been doing for the last half-century.