Washington DC: US President Joe Biden warned Russian President Vladimir Putin on Saturday against the use of chemical or tactical nuclear weapons over Ukraine. Russia's invasion of Ukraine is currently in its sixth month.
Biden said, "Don't. Don't. Don't. You will change the face of war unlike anything since World War II," IANS reported.
When asked what the consequences would be if Putin crossed the line, Biden told CBS News, "You think I would tell you if I knew exactly what it would be? Of course, I'm not gonna tell you. It'll be consequential. They'll become more of a pariah in the world than they ever have been. And depending on the extent of what they do will determine what response would occur."
Biden-led US administration has announced $600 million in military aid to help the Ukrainian army.
Later, Biden talked about the US's domestic railroad issue. He told the news channel that he made every effort possible to avert a national railroad strike.
"We brought business and labour together," he said.
On Thursday, the President announced that a tentative deal had been reached between the railroads and rail workers' unions after 20 hours of negotiations in the US Department of Labour.
Biden continued, "One of the things that happen in negotiations, particularly if they've been elongated like these have, is people say and do things where the pride gets engaged as well. And it's awful hard to back off of some of these things. So, what we did was just say, 'Look, let's take a look. Let's take a look at what's happening'."
"You have a good deal being made for labour. Their income is going to go up 24 per cent over the next five years. They've worked out the healthcare piece, they worked out days off. They both sat down, in my view, and they were in the office today saying, 'Well, we finally figured it out. This is fair on both sides.' And it took that time to focus," he said.
"The alternative was just not thinkable. If, in fact, they'd gone on a strike, the supply chains in this country would've come to a screeching halt. We would've seen a real economic crisis," the president said.