Ukrainians paid tribute to their fallen loved ones and vowed to fight on to victory, while Russia said its forces were making gains in battles in the east as its invasion entered a second year with no end in sight.
Ukraine's allies around the world lit up landmark monuments, held vigils and prepared new sanctions in a collective show of support.
Our journalists on the ground discuss a year of reporting on the war, in today's Reuters World News podcast. Here's a taste of the conversation:
"Even if it was really shocking and a graphic. I had to take pictures. And for me, it was: we have to publish them. It's important. They are civilians. They are not soldiers. And this is what I do." - West Africa Chief Photographer Zohra Bensemra, who traveled to Bucha to cover the aftermath of a massacre and took an iconic picture
"Walking around Kyiv, it's sometimes easy to forget that this is the capital city of a country at war. And then you stumble across shocking reminders of what has been happening and what is happening across the country." - Editor-at-Large Mike Collett-White on resilience and anxiety in Ukraine
"It's the most serious bet that a Russian leader has taken since at least the fall of the Soviet Union, that you can't just walk off into the sunset. He has to stay in charge. That would be the argument of people within the Kremlin that you don't just walk away from something like this." - Russia Bureau Chief Guy Faulconbridge on Moscow's motives
We report from Mariupol in Russian-controlled Ukraine on life and death in the shattered city, and hear from a survivor who is still struggling to take in the enormity of what has happened.
After President Vladimir Putin delivered a stark warning to the West, we look at the size of Russia's nuclear arsenal.
More than 70,000 alleged war crimes have been reported in Ukraine since Russia invaded, but successful prosecutions won't be easy. Here's how the process works.
President Joe Biden dramatically emphasized U.S. backing for Ukraine this week with a trip to the country, but back home public support for sending weapons is softening as the conflict enters its second year with no end in sight.
China's effort to cast itself as a peacemaker on Ukraine reflects an aim to burnish its image rather than a change of stance, Western diplomats and analysts said, as it seeks to establish itself as a leader of a new multipolar world order.
U.S. Secretary of State Antony Blinken said countries like India and South Africa, which have not joined the West in denouncing Russia's invasion of Ukraine, were likely on a trajectory away from alignment with Moscow but that process would not happen "in one fell swoop."
