Russian missile strike kills six Ukrainian National Guard troops at Sumy training exercise

Russian missile strike kills six Ukrainian National Guard troops at Sumy training exercise

Event date: 2025-05-21

A Russian missile strike on a Ukrainian National Guard training exercise in Sumy region killed six servicemen and wounded more than 10 others on May 21, 2025, according to Ukraine's National Guard. The attack hit a firing range where troops were carrying out exercises, adding to scrutiny over how Ukraine organizes military training in areas exposed to repeated Russian bombardment.

Ukraine confirmed the strike early on Wednesday and said the unit's commander had been suspended while an official investigation was launched. The National Guard also said it had previously developed an algorithm of actions and issued orders intended to reduce the risk from air strikes when personnel gather in one place. The casualty toll therefore immediately raised questions about whether those procedures were followed effectively.

Russia's defence ministry had earlier released a video purporting to show an Iskander missile attack on the site, and the state news agency Tass claimed up to 70 people had been killed. The BBC report made clear that Russia's higher casualty claim was not verified. Instead, the confirmed figure in the packet came from the Ukrainian side: six dead and more than 10 wounded.

BBC Verify said its research placed the training ground in the far north of Sumy region, some distance south of the Russian border. That geography is significant because Sumy has endured repeated attacks during the war and has remained under pressure because of its proximity to Russia's Kursk region. Ukraine had previously argued that its operations across the border were meant to help create a buffer zone to protect Sumy, but the region has still come under sustained attack.

The strike also landed at a politically sensitive moment for Ukraine's military leadership. The BBC said some critics had complained about the scale of military losses in the area, while Russia continued trying to establish a so-called security zone along the frontier. In that setting, a deadly strike on troops assembled for training was both a tactical blow and a potential command issue.

The packet also noted that the Kremlin said President Vladimir Putin had visited Kursk the previous day in his first trip there since Ukrainian forces were pushed out. That context underlined the continuing importance of the border sector to both sides, though it does not change the core facts of the Sumy incident itself.

What is firmly established is that a Russian strike hit a Ukrainian training exercise, six troops were killed, more than 10 others were wounded and an investigation followed on the Ukrainian side. The event exposed the continuing danger of assembling forces within range of Russian surveillance and missile attack, even for rear-area training rather than front-line combat.