Russia cannot be allowed to wage war with impunity, US Secretary of State Antony Blinken and his counterparts from India, Japan and Australia said in a statement on Friday following a meeting in New Delhi.
The so-called Quad group also said that the use, or threat of use, of nuclear weapons in Ukraine was "inadmissible". Late last month, Russian President Vladimir Putin suspended a landmark nuclear arms control treaty and threatened to resume nuclear tests.
