Having been deployed to Los Angeles by President Donald Trump in order to quell protests against ICE, U.S. Marines detained their first civilian on Friday: an Army veteran on his way to the Department of Veterans Affairs.

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

LOS ANGELES, California — Armed Marines arrived on the streets of Los Angeles Friday, part of a large deployment of troops ordered by Donald Trump that has raised the stakes between the US president and opponents claiming growing authoritarianism.

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.

U.S. Marines have temporarily detained a man after he walked onto the property of a federal building they were guarding in Los Angeles.

The development comes a day after an appeals court temporarily blocked a judge’s order that directed President Trump to return control of the California National Guard.

The unprecedented mobilization of Marines in Los Angeles and threats from a Florida law enforcement official to kill protesters took place on the eve of mass demonstrations across the country against the attempt by Donald Trump to establish a military dictatorship in the US.

PHILADELPHIA (AP) — Cities large and small were preparing for major demonstrations Saturday across the U.S. against President Donald Trump, as officials urge calm, National Guard troops mobilize and Trump attends a military parade in Washington to mark the Army’s 250th anniversary.

A federal judge on Thursday might rule on whether or not the Trump administration lawfully deployed National Guard and Marine Corps troops to Los Angeles.