A team of US national security advisers has been quietly holding mock drills to workshop different potential responses if Russia should use chemical, biological or nuclear weapons, according to the New York Times.
The group is also holding classified sessions to determine a response in case Moscow expands its war into other neighbouring territories, the NY Times reports.
And they are discussing ways to help European allies as they struggle to accept the millions of refugees leaving Ukraine.
The so-called White House “tiger team” was formed in October, according to the Washington Post.
