Davos, Jan. 22 -- Ukrainian president Volodymyr Zelenskyy on Thursday warned Europe of weakening its credibility, accusing it of repeatedly recognising global threats but failing to act.

While addressing the World Economic Forum (WEF) here, he linked Europe's response to the war with the issue of accountability.

Zelenskyy said, "President Trump led an operation in Venezuela, and Maduro was arrested. There were different opinions about it, but the fact remains that Maduro is on trial in New York. Sorry, Putin is not on trial. This is the fourth year of the biggest war in Europe since World War II, and the man who started it is not only free, he is still fighting for his frozen money in Europe."

"Just last year, here in Davos, I ended my...