U.S. Defense Secretary Lloyd Austin on Tuesday will try and convince European allies that President Joe Biden's administration is still committed to supporting Ukraine, even as Washington has essentially run out of money to continue arming Kyiv and there are few signs that Congress will move to replenish funds.

Republican House of Representatives Speaker Mike Johnson has so far refused to call a vote on a bill that would provide $60 billion more for Ukraine and the White House has been scrambling to find ways to send assistance to Kyiv, which has been battling Russian forces for more than two years.

Austin will be leading the monthly meeting known as the Ukraine defense contact group (UDCG), held at Ramstein Air Base in Germany, of about 50 allies that have been militarily supporting Ukraine.