President Donald Trump has ordered 700 Marines into Los Angeles, hoping the troops will end four days of violent protests over illegal immigrant raids.All of the Marines are expected to arrive by today. They will guard federal buildings and back up police until 4,000 National Guard members can take over.Sending active duty soldiers into a major city is rare. California’s Democratic leaders insist they never asked for military help and have filed a lawsuit claiming the move violates state rights..Homeland Security Secretary Kristi Noem said raids on people suspected of being in the country illegally will continue. Noem argued the operations are legal and needed to “restore order.”Protestors have blocked streets, burned cars, and surrounded a downtown detention centre holding illegal immigrants. Police in riot gear have fired tear gas and “less-lethal” rounds of ammunition to push people back.The dispute has widened a deep political rift. .Trump threatened Governor Gavin Newsom with arrest for refusing to co-operate, while Senator Jack Reed, the top Democrat on the Senate Armed Services Committee, warned that Trump is turning a “tense moment” into a “national crisis.”“Americans do not want the military doing police work on US soil,” said Reed in a statement.The White House rejects Reed’s claim, saying the Marines are protecting federal property. Los Angeles Mayor Karen Bass urged calm and dialogue.The deployment follows Trump’s weekend promise to “liberate Los Angeles” from what he called “migrant riots.”.Trump says state officials have failed to keep residents safe.By late Monday, the Los Angeles Police Department (LAPD) had begun dispersing hundreds of protestors outside the detention centre. National Guard soldiers barred entry before LAPD officers advanced, making arrests, and clearing the area.Officials gave no timeline for how long the Marines will stay.