Russia launched hundreds of drones and missiles at Kyiv and other parts of Ukraine early on Sunday, killing at least four people and injuring dozens, in one of the most sustained attacks on the capital since the full-scale war began.

UNITED NATIONS (Reuters) -Russian Foreign Minister Sergei Lavrov told the West on Saturday that any aggression against Moscow would face a "decisive response," warning against attempts to down aircraft in Russian airspace and accusing Germany of militaristic rhetoric.

Ukrainian President Volodymyr Zelenskiy and his top military commander said on Friday that Russian offensives had failed to meet their goals and Moscow was suffering heavy losses on the battlefield.

Russia is using its battlefield experience to give Chinese airborne units the training and technical knowhow to carry out lightning-fast operations.