 Kremlin. Russia has information on NATO fighters taking part in hostilities in Ukraine. Moscow knew, even without American leaked documents about NATO countries' involvement in what was happening in Ukraine. Kremlin spokesman Dmitry Peskov told reporters, like everyone else, we don't know to what extent we can trust these documents. The Kremlin spokesman pointed out, however, long before these documents popped up, we had and still information that many instructors from NATO countries, including the UK as well as fighters, are taking part in combat operations, Peskov stressed. The US media earlier said, citing the US administration officials that the Pentagon and the US Justice Department were investigating a leak of documents concerning the US and NATO's plans to train Ukrainian soldiers ahead of an offensive against Russia. Numerous documents on the schedules of armed supplies and the strength of forces were leaked to social networks, including Twitter and Telegram. These documents also contained information on the presence of NATO fighters in Ukraine as well as on the work of foreign instructors. One of the classified US military documents leaked online shows the presence of 97 NATO Special Forces operators in Ukraine as of March 1, 2023, of which 50 were British. The Guardian outlet reported it had seen two files dated late February and early March that listed 50 British Special Operatives as being active in Ukraine. The US had 14 Special Operatives in the country and France another 15.