The last Zapad exercises were held in September 2009 and involved a total of 15,000 Russian soldiers and navy servicemen, as well as 6,500 Belarusian troops. The equipment deployed included tanks, armored fighting vehicles, and artillery, along with about 100 combat planes and helicopters and 20 warships. The Zapad exercises simulated an invasion of Poland in response to Belarus being attacked by Poland and Lithuania. This included the simulation of a tactical nuclear strike on Warsaw by Russian and Belarusian forces. These exercises occurred in the context of a resurgent Russia, which just one year before had defeated former Soviet state and NATO ally Georgia in a five-day war .