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

Saturday marks the first full day of Marines on duty in Los Angeles, one week after protests against Immigration and Customs Enforcement raids ignited in LA.

The parade, honoring the Army’s long-planned 250th anniversary celebration and coinciding with Trump’s 79th birthday, is set to step off from the Lincoln Memorial under the threat of stormy weather in Washington and protests around the country tied to a turbulent week of immigration enforcement that has involved military deployment in Los Angeles.

About 200 Marines have moved into Los Angeles and will protect federal property and personnel, the commander in charge says.

"If he can successfully militarize LA without significant political consequences, Baltimore is next," said Angela Angel of BLM PAC.

A U.S. appeals court on Thursday allowed President Donald Trump to maintain his deployment of National Guard troops in Los Angeles amid protests over stepped-up immigration enforcement, temporarily pausing a lower court ruling that blocked the mobilization.

The military is for the battlefield," Newsom said Thursday, maintaining his opposition to the federal military presence in his state. Video Quality Speed 00:00 02:16 Newsom, Trump stand off: Military personnel to remain deployed in California for now.