By Omar Younis, Brad Brooks, Phil Stewart and Idrees Ali LOS ANGELES (Reuters) -U.S. Marines deployed to Los Angeles made their first detention of a civilian on Friday, part of a rare use of military force to support domestic police and coming ahead of national protests over President Donald Trump's military parade in Washington.

About 200 Marines have moved into Los Angeles and will protect federal property, personnel, the commander in charge says. Maj. Gen. Scott Sherman, commander of Task Force 51 who is overseeing the 4,700 troops deployed,