There are diverging western views on how to de-escalate the crisis in Ukraine and both sides of the argument will be making themselves heard here this week.

On one side sits the United States and, increasingly, the UK, whose  embattled Prime Minister Boris Johnson heads to the region on Tuesday promising to "accelerate diplomatic efforts and ramp up deterrence". 

Central to this camp's argument is that Russia's leader only understands tough words and actions so this is the best means to persuade him to back down and avoid conflict. 

Cue both London and Washington's decision to provide anti-tank missiles to Ukraine's military this month; as well the promise of harsh sanctions, including a proposal to cut Moscow off from the SWIFT system of international transfers, and Britain's announcement of a planned law to target entities of strategic importance to the Russia state in the event of further escalation.

Also in Ukraine this week, though, are two European parliamentary delegations more representative of the Franco-German led approach to averting war: that says tread carefully to ensure dialogue is not severed entirely.

Aspects of that stance have irked officials in Kyiv to say the least, with Berlin singled out for its reluctance to cancel a major pipeline transporting gas to Germany from Russia and its refusal not just to provide lethal aid but also to prevent some of its European partners from doing so.

But neither is it thrilled at some of the rhetoric coming from Washington and London of late. 

"Keep calm" President Vlodymyr Zelensky tried to re-assure people last week, and specifically perhaps investors. 

That's because there are clear signs western talk of an imminent Russian invasion is having a damaging impact on Ukraine's economy, with its stock market falling, its currency losing value against the dollar, and inflation on the rise.

If Russia's aim is to de-stabilise Ukraine, some worry, it may already be happening – economically – before a shot has even been fired.