Combat planes account for one third of all global arms transfers, with the United States topping the list of sellers and India, the United Arab Emirates and Israel the biggest buyers, according to the SIPRI think tankIn a report published Wednesday, just a week before China opens its massive airshow in Zhuhai, the independent Swedish institute cautioned that increased sales of combat aircraft could have a destabilising effect in many parts of the worldBetween 2005 and 2009, according to the report by the Stockholm International Peace Research Institute, the United States had sold 341 fighter jets, up from 286 planes sold during the previous five-year period, while Russia sold 219 planes, down from 331, and France sold 75, up from 58.