Iranian demonstrators hold posters of slain Maj. Gen. Qassem Soleimani (center) and the country’s supreme leader, Ayatollah Ali Khamenei, during a rally Friday in the capital, Tehran. The U.S. strike on the military leader in Baghdad has elicited warnings of retaliation from Iran.

Iranian demonstrators hold posters of slain Maj. Gen. Qassem Soleimani (center) and the country’s supreme leader, Ayatollah Ali Khamenei, during a rally Friday in the capital, Tehran. The U.S. strike on the military leader in Baghdad has elicited warnings of retaliation from Iran.