Photo taken on Jan. 7, 2020 shows the skyline in Baghdad, capital city of Iraq. Baghdad is under the spotlight after Iranian general Qassem Soleimani, former commander of the Quds Force of Iran's Islamic Revolution Guards Corps, was killed in a U.S. airstrike near Baghdad International Airport on Jan. 3. Photo:Xinhua

Photo taken on Jan. 7, 2020 shows the skyline in Baghdad, capital city of Iraq. Baghdad is under the spotlight after Iranian general Qassem Soleimani, former commander of the Quds Force of Iran's Islamic Revolution Guards Corps, was killed in a U.S. airstrike near Baghdad International Airport on Jan. 3. Photo:Xinhua

Photo taken on Jan. 7, 2020 shows the skyline in Baghdad, capital city of Iraq. Baghdad is under the spotlight after Iranian general Qassem Soleimani, former commander of the Quds Force of Iran's Islamic Revolution Guards Corps, was killed in a U.S. airstrike near Baghdad International Airport on Jan. 3. Photo:Xinhua

Photo taken on Jan. 7, 2020 shows the skyline in Baghdad, capital city of Iraq. Baghdad is under the spotlight after Iranian general Qassem Soleimani, former commander of the Quds Force of Iran's Islamic Revolution Guards Corps, was killed in a U.S. airstrike near Baghdad International Airport on Jan. 3. Photo:Xinhua