The Stockholm International Peace Research Institute, SIPRI, found that in 2010–14 Qatar was the 46th largest arms importer in the world. However, SIPRI writes, Qatar's plans to transform and significantly enlarge its armed forces have accelerated. Orders in 2013 for 62 tanks and 24 self-propelled guns from Germany were followed in 2014 by a number of other contracts, including 24 combat helicopters and 3 AEW aircraft from the USA, and 2 tanker aircraft from Spain.