Days after the Pentagon announced that total US military aid given to Ukraine so far has topped $18.5 billion, new reporting has revealed President Joe Biden briefly lost his temper in a phone call with his Ukrainian counterpart Volodymyr Zelensky, after the latter kept pressing for more money and arms.

NBC has cited four officials familiar with a phone call which took place in June, who revealed for the first time on Monday, "Biden had barely finished telling Zelenskyy he'd just greenlighted another $1 billion in U.S. military assistance for Ukraine when Zelenskyy started listing all the additional help he needed and wasn't getting."

At that point, "Biden lost his temper, the people familiar with the call said." Not only has Washington handed Kyiv a record amount of military aid, but tens of more billions in humanitarian funding as well, as the country struggles to keep the lights on and keep civil services active amid mounting wartime debt as the Russian invasion continues.