The United Kingdom urged allies to "present a united front against...Russian posturing towards Ukraine" ahead of a meeting of G7 foreign ministers in Liverpool this weekend.
"This weekend the world’s most influential democracies will take a stand against aggressors who seek to undermine liberty and send a clear message that we are a united front," UK foreign secretary Liz Truss said in a statement.
The UK warned that any Russian invasion of Ukraine would be "a serious strategic error and yield severe consequences."
NATO countries have warned they will inflict economic sanctions if Russia invades Ukraine.
Many Western nations have expressed concern about a buildup of troops on the Ukrainian border.
Truss also said she wanted to work with
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