After President Trump and Vice President JD Vance accused Ukraine's Zelensky of being 'ungrateful' amid last Friday's explosive row in front of media cameras in the Oval Office, the White House on Monday announced the suspension of military aid to Ukraine. 

But it was initially unclear precisely when the pause in arms deliveries would take effect, or whether Trump was merely previewing a future suspension. New information revealed in fresh reports sheds more light on the matter, and clearly Trump means business. It was immediate upon the announcement.

"US weapons deliveries to Ukraine came to an abrupt halt on Monday evening after President Donald Trump ordered a pause on all aid to the war-torn country, the Pentagon confirmed on Tuesday," USA Today reports, based on an admin official.