Pro-Russian militants sit upon a T-54 Soviet-era medium tank taken from the WWII open-air museum in the eastern Ukrainian city of Donetsk, after loading it onto a truck on July 7, 2014 to use it against Ukrainian forces. Retreating pro-Russian insurgents dug in on July 7 in Ukraine's sprawling industrial hub of Donetsk after government forces scored a string of morale-boosting victories in the bloody battle for the future of the country. AFP PHOTO/ ALEXANDER KHUDOTEPLY        (Photo credit should read Alexander KHUDOTEPLY/AFP/Getty Images)