Why can't the world's peacekeeper stop the fighting in Gaza and Ukraine?

The United Nations is in the news almost daily now. Particularly about the war in Gaza. But what exactly does the organisation do? Because, increasingly, the world has questions about its capabilities and its relevance. Are the directions of the world’s peacekeeper even binding? And why can’t it stop the fighting in Gaza and Ukraine? Today, explainer reporter Angus Holland on what the United Nations is able to achieve in wartime.Subscribe to The Age & SMH: https://subscribe.smh.com.au/See omnystudio.com/listener for privacy information.