War in Ukraine: what you need to know

The last: Zelensky will deliver a wartime speech to the UN Security Council on Tuesday in a meeting expected to focus on the Bucha massacres. Vowing to hold Putin accountable, Biden again said war crimes had taken place in Ukraine.

The fight: Almost five weeks after their invasion, Russian forces continue to launch sporadic attacks against civilian targets in a number of Ukrainian towns. Russia is accused of committing war crimes.

Arms: Ukraine uses weapons such as Javelin anti-tank missiles and Switchblade “kamikaze” drones, supplied by the United States and other allies. Russia has used an array of weapons against Ukraine, some of which have drawn analysts’ attention and concern.

In Russia: Putin blocked the flow of information in Russia, where the war is not even called a war. The latest independent newsletter in Russia suspended operations on Monday.

Pictures: Post-photographers have been in the field since the very beginning of the war. Here are some of their most powerful works.

How you can help: Here’s how those in the United States can help support the people of Ukraine as well as what people around the world have donated.

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