Former Ukrainian president says the Vladimir Putin he once dealt with 'no longer exists,' outlines how the world can defeat the 'brutal despot'

The former Ukrainian President, who led the country from 2005 to 2010, has outlined a three-pronged approach that he believes will help defeat Putin.

In an op-ed for The Guardian published on Sunday, Yushchenko said that Ukraine now faces a savage army led by someone he once had a personal history with.

My history with Putin goes back to 2000 when I was the prime minister of our respective countries. He actively campaign against me when I ran to be president of Ukraine.

The lengths he was willing to go in order to get what he wanted became clear. He wrote that after he won, he realized that he needed to try to keep a relationship with him as the leader of our neighbor in the east.

The Putin I dealt with was no longer around. He has since become a completely isolated and brutal dictator.

According to Yushchenko, one thing that Putin really doesn't like is international solidarity and support.

He wrote that for the Ukrainians to succeed, there must not be fatigue in the global community towards the horrors of war.

The second part of the plan involves continued weapons and military assistance.

The army needs weapons and military assistance from all of our allies.

Civil societies should continue to help Ukrainian forces get non-lethal supplies and protective equipment.

Yushchenko believes that victory for Ukraine is inevitable.