Two Chinese frigates participate in the AMAN-2011 joint naval exercise in Karachi, Pakistan, Mar 12, 2011. [Photo by Du Wenjuan/chinadaily.com.cn] 

Pakistan's Prime Minister Yousaf Raza Gilani (2nd from right) talks with Pakistan's military officers during an international fleet review of the AMAN-2011 joint naval exercise in Karachi, Pakistan, Mar 12, 2011. [Photo by Du Wenjuan/chinadaily.com.cn]