Ukraine war live updates: Ukraine's survival is in danger, Pentagon chief warns; Putin could make China his first visit of new term

This is CNBC's live blog tracking developments on the war in Ukraine. See below for the latest updates. 

Ukraine's survival is at stake amid an ongoing funding impasse in the U.S. Congress, U.S. Defense Secretary Lloyd Austin warned Tuesday, stating that additional aid for Ukraine was a matter of "honor" for the United States.

"Today, Ukraine's survival is in danger in America's security is at risk. And they don't have a day to waste. And we don't have a day to spare either," Austin said at a press conference after a meeting of the Ukraine defense contact group meeting at the Ramstein Air Base in Germany on Tuesday, with representatives from Ukraine and around 50 allied countries attending.

"I leave here today fully determined to keep U.S. security assistance and ammunition flowing. And that's a matter of survival and sovereignty for Ukraine. And it's a matter of honor and security for America. And make no mistake, Putin is watching. The world is watching and history is watching," Austin said.

In other news, Russian President Vladimir Putin said late Tuesday that he will consider China for the first overseas trip he'll make in his fifth term in office.

Russian President Vladimir Putin said late on Tuesday that he will consider China for his first overseas trip during his new presidential term that he secured in weekend election.

On Tuesday, Reuters exclusively reported that Putin will travel to China in May for talks with Xi Jinping, in what could be the Kremlin chief's first overseas trip of his new presidential term.

Russia's TASS state news agency reported that at a meeting with parliamentary factions on Tuesday the leader of the Communist Party, Gennady Zyuganov, asked Putin to choose Beijing for the trip.

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