The world must stop Vladimir Putin’s war in Ukraine as this “could be a prologue to a greater European or even global massacre,” top Ukrainian aide to the President’s office has warned.

Head of the Ukrainian presidential office, Andriy Yermak said that for many years the “West listened to Mr Putin but didn’t hear him.”

He warned that it is only now the world are now finally “waking up to the existential challenge” that the Russian President “poses to the world order.”

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Writing from an underground bunker for the New York Times Yermark warned that “Not since the end of World War II has Europe seen violence and naked territorial ambition at such a scale.”

He added, “For a week, Russian bombs have fallen overhead. Despite the constant barrage of Russian fire, we stand firm and united in our resolve to defeat the invaders.

“We will fight to the last breath to protect our country.

“But make no mistake: Other autocrats are watching, taking lessons.

“They can create a coalition of bad will — just look at how once-peaceful Belarus is now serving as a staging ground for Russian troops.”

Yermak wrote in the New York Times, “Listen to what Mr Putin is saying.

“For years, the West listened to Mr Putin but didn’t hear him; it is just now waking up to the existential challenge he poses to the world order.

“Ukraine has never underestimated his intentions – not since Russian aggression against our country began in earnest in 2014 – nor his willingness to achieve domination by any means necessary.

“That’s because we know this war is not just about Ukraine.

“The Kremlin wants to create a new Russian empire.”

Yermark continued, “Again, make no mistake: Mr Putin aims to advance this ideology by going for blood beyond Ukraine. He must be stopped.”

Putin called

On Thursday the French president Emmanuel Macron spoke with the Russian dictator for 90 minutes, in a stark warning, Macron said “the worst is yet to come.”