Russo-Ukrainian War: The Kakhovka Dam is destroyed.

The Russo-Ukrainian War began in February 2014 and is ongoing. Following Ukraine's Revolution of Dignity, Russia occupied and annexed Crimea from Ukraine. It then supported Russian paramilitaries who began a war in the eastern Donbas region against Ukraine's military. In 2018, Ukraine declared the region to be occupied by Russia. These first eight years of conflict also included naval incidents and cyberwarfare. In February 2022, Russia launched a full-scale invasion of Ukraine and began occupying more of the country, starting the biggest conflict in Europe since World War II. The war has resulted in a refugee crisis and hundreds of thousands of deaths.

The Kakhovka Dam was a dam on the Dnieper River in Kherson Oblast, Ukraine, completed in 1956 and destroyed in 2023, which provided water for the Kakhovka Hydroelectric Station. The primary purposes of the dam were hydroelectric power generation, irrigation, and navigation. It was the sixth and last dam in the Dnieper reservoir cascade.

The Kakhovka Dam was breached in the early hours of 6 June 2023, causing extensive flooding along the lower Dnieper river, also called the Dnipro, in Kherson Oblast. The dam was under the control of the Russian military, which had seized it in the early days of the Russian invasion of Ukraine. Many experts have concluded that Russian forces likely blew up a segment of the dam to hinder the planned Ukrainian counter-offensive. Russian authorities have denied the accusation.

June 6 is the 157th day of the year in the Gregorian calendar; 208 days remain until the end of the year.