https://heavy.com/news/2020/01/qassem-soleimani/

"The New Yorker article says that Soleimani has the blood of American soldiers on his hands; he was known for “assassinating rivals, arming allies, and, for most of a decade, directing a network of militant groups that killed hundreds of Americans in Iraq.” The U.S. Department of the Treasury sanctioned Suleimani.

Tensions were already escalating with the Iran-backed militia attacks on the U.S. embassy in Iraq. Those attacks followed U.S. air raids “against Kataib Hezbollah militia bases” to avenge the death of a U.S. contractor in missile attacks in northern Iraq, according to Jerusalem Post. In contrast, the Obama administration had signed a nuclear deal with Iran."