 Their estimate for the earlier Chechen war was 14,000 dead troops as compared with the official figure of 5,500.According to 2003 Military Balance, the annual report International Institute for Strategic Studies, the British-based think tank, Russian forces suffered 4,749 dead, wounded or missing in hostile and non-hostile incidents in Chechnya between August 2002 and August 2003.In 2004, Denis Trifonov of the British strategic-research centre Jane's Information Group estimated that the federal forces in Chechnya suffered some 9,000 to 11,000 combat deaths during the second war's most intense phase, from its beginning in late summer 1999 to early 2002.