Is it time for global disarmament? Ethiopia. Ukraine. Yemen. War and armed conflict wages throughout the world but many argue that the money would be better spent on improving the world.
Give up your weapons now, UN tells world
Shutting down: Over 20 months, cities in Tigray faded into darkness as the electricity supply was cut off. Glossary
Tigray - A region home to the Tigrayan people in northern Ethiopia.
Kamikaze drones - Also known as "loitering" munitions, unmanned, explosive-laden drones which can hover above an area to identify a target.
Utopian - Impossibly perfect. The term comes from an ancient Greek phrase meaning "no-place" invented by Henry VIII's chancellor, Sir Thomas More, in 1516, as the name of an imaginary, ideal island.
Hiroshima - A Japanese city destroyed by an atomic bomb in World War II.