WASHINGTON—President Donald Trump defended the use of the phrase “mission accomplished” after the U.S., U.K. and France conducted airstrikes Friday night that targeted the regime of Syrian President Bashar al-Assad in response to an alleged chemical weapons attack.
“The Syrian raid was so perfectly carried out, with such precision, that the only way the Fake News Media could demean was by my use of the term “Mission Accomplished,” Mr. Trump wrote on Twitter on Sunday morning. “I knew they would seize on this but felt it is...