CHICAGO — Illinois and Chicago filed a lawsuit Monday aiming to stop President Donald Trump’s administration from sending hundreds of National Guard troops to Chicago.

Trump moved to deploy the National Guard in another city on Saturday by authorizing 300 troops to protect federal officers and assets in Chicago. Trump has long threatened to send troops to Chicago, but it was not immediately clear when or exactly where they would be deployed.

The lawsuit alleges that “these advances in President Trump’s long-declared ‘War’ on Chicago and Illinois are unlawful and dangerous.”

“The American people, regardless of where they reside, should not live under the threat of occupation by the United States military, particularly not simply because their city or state leadership has fallen out of a president’s favor,” the lawsuit says.