Hidden landmines and other devices left behind from wars are present in nearly 70 countries and territories, according to the military alliance Nato. Among those is Ukraine, where the war has made it one of the most mine laden countries in the world. Recently, Ukraine joined several other countries bordering Russia in announcing it will withdraw from an international mine ban treaty. Since 1999 that agreement, known as the Ottawa Convention, has prohibited the use, stockpiling and production of anti-personnel mines. We discuss the global impact of the weapon. Researchers say each year more than 5,500 people are killed or injured. Most are civilians. Many are children. We hear from landmine survivors in Ukraine, Iraq, Cambodia, Bosnia and Uganda about how their lives have been changed by landmines. Also, three men in Ukraine, Tajikistan and Syria, discuss why they put their lives at risk by trying to remove landmines. This episode of The Documentary, comes to you from BBC OS Conversations, bringing together people from around the world to discuss how major news stories are affecting their lives.