This just means they’re going to bring their war against America to other cities. Prepare by organizing your neighborhood. That means a local signal chat, explanations of how to respond to short and long whistle blasts, and preparation to get people to respond on a moment’s notice
Call your rep and senators and ask that ICE and the Border Patrol be prosecuted for levying war against the United States. Point out their armament, military-style uniforms, and propensity to shoot people.
I don’t expect success quickly, but it’s in the realm of possibility