WASHINGTON President Joe Biden on Monday reiterated his threat to cancel Russias lucrative, nearly completed natural gas pipeline to Germany should it further invade Ukraine, this time with Germanys new chancellor standing beside him at the White House.

If Russia invades, that means tanks and troops cross the border into Ukraine again, there will no longer be a Nord Stream 2, Biden said during a joint East Room news conference with German leader Olaf Scholz. We will bring an end to it.

Russian dictator Vladimir Putin has amassed more than 100,000 troops along Ukraines border in recent months, raising the threat of another invasion. In 2014, he invaded and annexed Crimea from its neighbor, which gained independence during the break-up of the Soviet Union in 1991.

Biden said that Putin still has the option of ending the crisis through diplomatic means, but that he cannot predict what Putin will do. I dont know that he knows what hes going to do, Biden said, adding that Putin and Russia will suffer if he goes ahead and invades. We will impose the most severe sanctions that have ever been imposed.

Scholz, who in December took over from longtime Chancellor Angela Merkel, agreed that a new invasion would be severely punished. There will be a high price for Russia, he said. Even Russia has understood the message now.

Scholz, though, did not specifically repeat Bidens language about Nord Stream 2, despite attempts from reporters to have him clarify his position. He did say that Germany and the United States are in full agreement on the sanctions. We will be united, he said. We are absolutely together.