Pakistan is staging what officials have called the country's biggest-ever military exercises. <br /> <br />The war games - which began on April 10 and will last for six-weeks - have been played out in the southeastern Cholistan desert, near the border with India. <br /> <br />It comes at a time when the country is engaged in a war with Taliban and al-Qaeda fighters and while tensions remain strong with neighbouring India. <br /> <br />The exercises have showed off an wide array of weapons from Swiss-made anti-aircraft guns to unmanned drones and a state-of-the-art battle tank. <br /> <br />Al Jazeera's Kamal Hyder reports from Islamabad.