By Kanishka Singh WASHINGTON (Reuters) – A few dozen anti-war activists gathered at Times Square in New York City and outside the White House late on Thursday to protest U.S. and British strikes against Houthi military targets in Yemen, saying the step threatened to widen the war in Gaza. The United States and Britain launched the strikes from the air and sea in response to attacks by Houthis on ships in the Red Sea, which the movement says is a show of support for Palestinians under siege by Israel in Hamas-governed Gaza. Protesters at Times Square chanted slogans such as “hands off the Middl…