"We're pleading with the whole world to hear us."  Military volunteer 

On Monday, Four Corners takes you into a city under siege - Kyiv, the capital of Ukraine.  

"The Ukrainian army and the Ukrainian spirit prevail.  We are highly motivated, but Putin's number of jets, bombers and other weapons significantly outnumber ours."  Ukrainian member of parliament

With the city enduring indiscriminate bombing, and with Russian forces attempting to encircle the capital, Sarah Ferguson reports on the Ukrainian people resisting the Russian invasion

Two decades ago, Australia's military forces led an international armed intervention in East Timor to quell a wave of sickening violence. Mark Willacy reveals the untold story of a disturbing chapter in our military history.