'Most massive' Russian attack on Kyiv kills at least 18

The briefing

Kyiv's mayor declares a day of mourning after the major drone and missile attack on the Ukrainian capital

Why this counts

What makes this worth tracking, according to BBC, is the chain of decisions it may trigger.

What precedes this

What precedes 'most massive' russian attack on kyiv kills at least 18, according to BBC, is a sequence of decisions that narrowed the range of possible outcomes.

Where this fits in Signal Ledger

Related coverage from the World desk.

• China says pilot crashed small plane into skyscraper for 'personal reasons'
• In Sintra, world's central bankers find ally in new Fed chief
• Alleged Scattered Spider hacker arrested in Finland

The lens

Signal Ledger reads this through the lens of massive, russian, attack, kyiv, kills: Kyiv's mayor declares a day of mourning after the major drone and missile attack on the Ukrainian capital.