“The US has been sending secret messages to Russia to warn that it will face grave consequences if it conducts a nuclear strike in Ukraine.
Deliberately vague, the memos are designed to keep the Kremlin guessing over how Joe Biden, the US President, would respond.
US officials told the Washington Post newspaper the private communications had been dispatched regularly for the last several months.
The revelation emerged after Vladimir Putin, the Russian president, on Wednesday issued a threat to retaliate with nuclear weapons.
Western officials have played down the chances of the Kremlin leader using nuclear weapons, noting he has said similar things in the past. “
Comment: So, that is why Putin’s “warning” was “conditional. pl