Moscow has also used its own troops to carry out such attacks, which aim to overwhelm Ukrainian positions.

While these “human wave tactics” were ineffective, he acknowledged that Russia’s grinding assault on Ukraine’s energy infrastructure was making it difficult for Ukrainians to weather the winter. Neither Russia nor North Korea have publicly ...

A thousand North Korean troops have been killed or wounded in the last week fighting in Ukraine, the US has said. White House National Security Council spokesman John Kirby told reporters that Russia was deploying “human waves” of North Korean soldiers,