Andriy Yermak, the head of the Ukrainian presidential office, wrote in an article that the Ukrainian war could be the prelude to a larger European or even global massacre, and a senior aide to Ukrainian President Zelensky warned that if his allies do not take more measures to stop him, Vladimir Putin will "seek blood outside of Ukraine.

This war could be the prelude to a larger European or even global massacre, "Andriy Yermak, the head of the Ukrainian presidential office, wrote in a guest article from an underground bunker in The New York Times.

Since the end of World War II, Europe has never seen such a scale of violence and blatant territorial ambitions, "he wrote.

He continued, 'For the past week, Russian bombs have been falling on our heads. Despite...'artillery fireContinuously, but we remain steadfast and united, determined to defeat the invaders. We will fight until our last breath to protect our country.

Ukrainian President Zelensky delivers a speech at a press conference in Kiev

But make no mistake: other dictators are observing and learning from their lessons. They can form a malicious alliance - see how once peaceful Belarus now becomes a gathering place for Russian troops

Mr. Yermak is a lawyer whose mother is Russian, and he has been friends with the Ukrainian President for over ten years. The two met while working in television and film production.

Listen to what Mr. Putin is saying, "he continued. I only now realize the survival challenge he poses to the world order.

Ukraine has never underestimated his intentions - since Russia officially began invading our country in 2014- nor has it underestimated his willingness to achieve rule by any necessary means.

Residential building destroyed by shelling in Borodianka, Kiev

That's because we know this war is not just about Ukraine. The Kremlin wants to establish a new Russian Empire

The lawyer pleaded with Ukraine's Western allies to pay attention to Putin's "survival challenge to the world order".

Once again, make no mistake: Mr. Putin's goal is to advance this ideology by seeking blood outside of Ukraine. He must be stopped, "he insisted.