SIR Keir Starmer’s pledge to deploy “British boots in Ukraine” has been met with jubilance in Kyiv.

But in Britain it’s raised more questions than answers as to how Europe must respond to the war.

In eerie Kyiv men between 20 – 50 are few and far between on the frozen streets.

Most of them are stationed across the frontline, have been injured or died fighting what they see as not just a battle for Ukraine – but for the West and Europe and democracy.

From the UK they need certainty. Not empty words.

The PM knows he desperately needs to set out a path to spending 2.5 per cent of GDP on defence.

How is it feasible for thousands of troops to come and help desperate Ukrainians when Sir Keir hasn’t even explained how he will fund them?

In an empty restaurant in quiet Lviv, I watched as five Ukrainian security chiefs guzzled a shot of vodka.

It was around their fourth toast of night – easy work for these hard-as-nails military men.

Having drunk to the health of their country and army, this next drink was for Britain.

The chiefs had heard Sir Keir Starmer pledge the possibility of peacekeeping British boots on Ukrainian soil. And for that they were elated.

The promise from the PM came in the wake of US President Donald Trump side-lining Kyiv to kickstart discussions on a deal to end the war with Vladimir Putin.

“Even hearing the words British boots, before anything has happened, is a huge morale boost for my people”, one military top brass told me as he slurped bright red Borscht.

The human tank added: “Many steps in the war are being made first by Britain and then others followed.

“It’s good leadership and this is how it should be. Someone needs to take the lead.”

What he and his top brass colleagues around the table weren’t seeing was the chaos the PM’s announced had sparked.

At home, former British Army chief Lord Dannatt warned the UK military is “so run down” it couldn’t lead any future peacekeeping mission to Kyiv.

Other military sources told The Sun’s defence man Jerome Starkey the army will be stretched to breaking point if thousands of troops go to hold the line in Ukraine.

In Paris last night, at an emergency meeting of leaders to strategize Europe’s response to Trump, German Chancellor Olaf Scholz slated Sir Keir’s proposal.

He told reporters: “It is completely premature and the completely wrong time to be having this discussion now.”

While the response went down more like a cup of cold sick than vodka with military leaders I met in Kyiv, Mr Scholz has somewhat of a point.

There are questions Sir Keir must answer – and fast.

But while the war still rages, security chiefs in Ukraine tell me that more than anything they need weapons.

The future of the war is in the air, they say.

Drones, missiles, and air defence capabilities are in short supply but are key to stopping “idiot” Putin’s killing spree.

The war will be far more focused on tech than people in the not too distant future.

Responding to Scholz’s backlash against British peacekeepers, a former Ukrainian SAS man told me: “Germany doesn’t have to be afraid of the Russians. There’s no point in being scared.

“If we have well trained British military here on the second or third line it can be very helpful so we can send our people to the frontline.”

He added: “What I’m hearing from Germany is disappointing. Historically, Germany they are scared of Nazi flashbacks.

“There are people saying Germans can’t be on sovereign Ukrainian soil.

“This is bullshit said by people who support Russian propaganda.”

While Starmer’s offer of peace-keeping troops on the ground was widely welcomed, first, of course, the region needs peace.

In Lviv I received a warning.

“We will fight until the death,” a security chief told me.

“We have nothing to lose. We are not going anywhere.

“But the war is not about Ukraine and it won’t stop in Ukraine.

“Putin is coming to Europe and we can’t stop him forever.”

Sir Keir’s words are welcomed – but it will be his plan of execution that really has any bearing on the devastating war.

So far that is missing.