Reuters, the news and media division of Thomson Reuters, is the world’s largest multimedia news provider, reaching billions of people worldwide every day. Reuters provides business, financial, national and international news to professionals via desktop terminals, the world's media organizations, industry events and directly to consumers.

Maj. Gen. Scott Sherman said 500 National Guard members have been trained to accompany agents on immigration operations.

The Marines and the National Guard personnel deployed amid the protests in to Los Angeles will operate under the same rules of force and will not be engaging crowds unless necessary, according to two U.S. officials.

Los Angeles residents and experts say the National Guard's presence in Los Angeles in response to immigration protests is reminiscent of a long-standing dynamic in the state and around the country.

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.

About 700 Marines and more than 4,000 National Guard have been deployed at the cost of $134 million. William Deverell is a professor of history at USC’s Dornsife College of Letters, Arts and Sciences.

A temporary restraining order said the deployment of the Guard was illegal and exceeded Trump’s statutory authority.

Los Angeles endured a sixth day of protests that have been largely peaceful but occasionally punctuated by violence.

Massachusetts senators Elizabeth Warren and Ed Markey called Trump's move to deploy the National Guard to quell LA protests "authoritarian."

WASHINGTON (AP) — National Guard troops already have temporarily detained civilians in the Los Angeles protests over immigration raids, the commander in charge said Wednesday, but they quickly turned them over to law enforcement.