"The idea is that both sides are upping the ante...In our case, it's to deter the attack and to suggest that we are very serious about defending Ukrainian sovereignty"

Dr @alanmendoza for @TimesRadio on whether or not troop build-up precludes diplomacy:

"The reality is there are British units and American units already on standby, high notice, ready to move to reinforce NATO allies."

HJS Research Fellow @RobertClark87 for @LBC on troop deployment in Ukraine:

"The Western Front in defending Ukraine is not Donetsk but the King's Road.

The best way to really threaten Putin is to seize those kleptocrats' assets and London lifestyles so that they see Putin's aggression carries grave costs."

-Dr. Alan Mendoza on the situation in Ukraine