At least 10 killed in large-scale Russian missile and drone strikes on Kyiv

What we know about least

Russia launched its biggest strikes on the city in weeks with children among the "significant number" of casualties, Ukrainian officials say

Why this counts

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

What precedes this

Earlier reporting from BBC and comparable outlets sketched the conditions that would eventually produce an event like this.

Where this fits in Signal Ledger

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The lens

Signal Ledger reads this through the lens of least, killed, large, scale, russian: Russia launched its biggest strikes on the city in weeks with children among the "significant number" of casualties, Ukrainian officials say.