NEW DELHI: China might have sprung to Pakistan's defence after the world reacted with anger and disbelief at al-Qaida chief Osama bin Laden 's secret life some 115 km from Islamabad, but Wikileaks' Gitmo files show its ally provided training grounds to Uighurs rebelling against Beijing.In keeping with it being an "all weather" ally of Pakistan and as part of its bid to check India, China rallied behind Islamabad but some of the terrorist organizations that used the porous Pak-Afghan border to their advantage include the East Turkestan Islamic Movement that opposes Chinese "discrimination".Files of 22 Uighur detainees at Gitmo, many of whom were held in Pakistan, speak of the ease with which they found their way to extremists mosques in Pakistan and their passage to Afghanistan. They vent their ire against Chinese rule and claim the rules for Uighurs were discriminatory.Along with the Islamic Movement of Uzbekistan, the Chinese rebels hoped to form a larger jihadi front that would be allied with the al-Qaida as well. The rebels saw Beijing as a foreign and un-Islamic implant with one detainee Ahmad Yuqub complaining that Chinese rulers did not permit farmers to plant crops of their choice.While Yaqub was reportedly a leading member of the East Turkestan Movement, he was believed to have worked with Osama and fought the coalition forces at Tora Bora.Beijing is concerned about the Islamic insurgency in east Turkistan, but it banks on Pakistan cracking down on Uighurs. China's state-controlled political and administrative system allows it to cut off areas where rebellion breaks out and deal with insurgents without having to bother about the prying eyes of the world media.But as the linkages that emerge from the Gitmo files show, there are several ports of call for Uighurs in Pakistan and access to arms training is not so difficult. Groups of Uighurs have frequently travelled to and from Pakistan to countries like Saudi Arabia, Egypt, Turkmenistan, Uzbekistan and Kyrgystan.