US Immigration and Customs Enforcement officers who spent the last four years stuck behind a desk processing illegal migrants under the Biden-Harris administration are preparing to get back out into the field — as President-elect Donald Trump and his “border czar” Tom Homan vowed to “flood” sanctuary cities with agents.

The move would mean thousands of desk-bound ICE officers will soon be out making arrests of the millions of illegal immigrants who snuck across the besieged southern border and are now roaming American streets.

The federal agency has a total workforce of about 21,000 employees, which includes non-law enforcement personnel who handle administration work, according to a Department of Homeland Security budget overview.