Traveling with Votel (CNN) The top US commander in the war against ISIS aligned himself Sunday with the US intelligence community assessment that there are "tens of thousands" of ISIS fighters spread across Syria and Iraq.

"They are dispersed and disaggregated, but there is leadership, there are fighters there, there are facilitators there," Gen. Joseph Votel told reporters traveling with him to the Middle East for his farewell tour.

Votel's comments underscore the testimony from Director of National Intelligence Dan Coats before Congress, an assessment President Donald Trump has publicly disagreed with.

The statements, however, come as US backed fighters are in heavy combat in the last area of Syria where ISIS still controls territory.

"I'm very proud of the coalition force team that we have on the ground who's assisting our Syrian Democratic force partners in what will be difficult fighting," Votel said. "Urban terrain, high density of explosive hazards in the area, and the presence of displaced persons and others who are attempting to depart the area."

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