As the military presence ramped up in Los Angeles, communities are preparing for the largest protests against Trump since he took office.

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, the military said, part of a rare domestic use of its forces sent to the city after days of protests over immigration raids.

Sherman serves as the commander of Joint Task Force 51, the command headquarters for the 4,000 federalized National Guardsmen and 700 Marines assigned to protect federal personnel

Around 200 Marines armed with rifles, riot control equipment, gas masks, roughly 20 hours of civil disturbance training and the ability to temporarily detain civilians arrived in the country's second-largest city after days of public anticipation.

Maj. Gen. Scott Sherman, commander of Task Force 51 who is overseeing the 4,700 troops deployed, said Friday that the Marines have finished training on civil disturbance.

Infantry Marines arrived in LA with minimal training to counter civilians protesting the Trump administration's immigration crackdown.

Marines temporarily detained a civilian protester in Los Angeles as authorities prepare for No Kings nationwide protests against the Trump administration Saturday.

"I would like to emphasize that the soldiers will not participate in law enforcement activities," the task force leader told reporters.