I think 'entered into armed conflict with' is a judicious way to put it, given 9/11 and the Iraqi invasion of Kuwait. Neither of these are fights the USA would have freely chosen.
But for every confict in which the USA is fighting one group of Muslims, it's doing so to protect or ally with another group of Muslims. The Afghan government are Muslims, the elected Iraqi government are Muslims, the victims of IS and the Taliban are overwhelmingly Muslims. Saudi Arabia, the west's biggest ally in the region is Muslim. We are allying with tens of millions of Muslims against groups consisting of thousands of Muslims. The west has far, far more Muslim allies than Muslim enemies.