At least 600 North Korean soldiers have been killed and thousands more wounded fighting in Russia’s war against Ukraine

North Korea has begun constructing a memorial for its soldiers killed fighting in Russia’s war on Ukraine, state media reported, as leader Kim Jong-un hailed a “historic peak” in ties with Moscow.

The so-called Memorial Museum of Combat Feats will be built in the capital, Pyongyang, where Kim and Russia’s ambassador to North Korea attended a groundbreaking ceremony, according to a reports by the Korean Central News Agency on Thursday.

Kim, addressing Thursday’s event, said the museum “is a sacred sanctuary dedicated to the immortality of true patriots”.

North Korea, one of the world’s most insular nations, has become a key Russian ally since Moscow invaded Ukraine in February 2022. It has sent thousands of soldiers and container loads of weapons to help the Kremlin push Ukrainian forces out of western Russia.