Military officials insist there has been no significant change to the rules governing its air campaign in Iraq and Syria, and ­instead attribute the string of alleged deadly incidents to a new, more intense phase of the war, in which Islamic State fighters are making a final stand in densely populated areas such as the Iraqi city of Mosul.

But some in Iraq and Syria are left wondering whether the higher death count is a product of President Trump’s bare-knuckle military stance and his suggestions that the United States should “take out” militants’ families.

The recent incidents, and the attention surrounding them, have generated concern within the military that the strikes have undermined the United States’ ability to fight the Islamic State.

“It does have a negative impact on our image at least throughout the region and the world, and it’s probably detrimental to the strength of our coalition. And that’s exactly what ISIS is trying to target right now,” Col. Joseph Scrocca, a military spokesman, said in a recent media briefing. ISIS is a common acronym for the Islamic State.