He called this part of what he described as a “war from within

1-Trump Orders Military Use of Chicago as ‘Training Ground’ — Major Civil Liberties Debate Begins
4-War From Within: Trump Says Cities Like Chicago Will Be Used for Military Training
3- Chicago Next: Trump Tells Military to Prep U.S. Cities for What He Calls ‘Dangerous’ Internal Threats
4- Is Chicago About to Become a Military Training Zone? Trump Says Troops Coming Soon