President Trump’s son-in-law and senior adviser Jared Kushner met with Iraqi Prime Minister Haider al-Abadi in Iraq on Monday amid the ongoing U.S. and Iraqi militaries’ battle to retake the city of Mosul from ISIS. The journalistic monitoring group Airwars says U.S.-led coalition airstrikes reportedly killed hundreds of civilians in Mosul last month, including a single airstrike on March 17 that killed up to 200 civilians.

The U.S. also has thousands of on-the-ground troops in Iraq, although it’s becoming harder to track their numbers and movements. Last week, a Pentagon spokesman announced that, unlike under the Obama administration, the U.S. will no longer announce or confirm the deployments of conventional U.S. troops in Iraq and Syria. Jared Kushner’s trip to Iraq comes before Rex Tillerson has visited the country as secretary of state.