Is war always wrong? Our writer, Antonia Langford, reports from the Ukrainian capital Kyiv as Russia steps up its attacks on the hard-hit city.
My life under the Russian bombardment
Ruthless: At least nine people have been killed and more than 70 injured in Kyiv after Russia carried out one of the most devastating air attacks against Ukraine for months last night. Glossary
Telegram - Today: an encrypted instant messaging app. In the past: a message sent via electric wires and delivered as a printed piece of paper. As every word was expensive, making the message as short as possible became an art. A famous joke telegram sent from Venice read, "STREETS FULL OF WATER PLEASE ADVISE".
Coercion - Forcing someone to do something. It derives from a Latin verb meaning "to restrain".
Tyranny - Cruel and aggressive use of power, often used to describe countries under the grip of a single oppressive leader.