Australia is modernising its armed forces but also acquiring weapons that significantly increase its long-range capabilities. Among the weapons imported in 2010–14 were 5 tanker aircraft and the first of 2 amphibious assault ships from Spain, along with 2 large transport aircraft and 4 airborne early warning (AEW) aircraft from the USA. Australia also received 26 combat aircraft from the US, with 82 more on order (see box 3), as well as 8 anti-submarine warfare aircraft from the US and 3 Hobart destroyers from Spain. Australia's imports of major weapons increased 37 percent between 2010–2014 and 2014–18, making it the fourth largest importer in the world according to SIPRI.