Thailand's Deputy Supreme Commander Gen. Montri Sangkhasap, front left, shakes hands with U.S. Executive Charge of Affairs James Enwistle during the opening ceremony of the Cobra Gold military exercise at a hotel in Chiang Mai province, northern Thailand Thursday, Feb. 4, 2009. The two-week long annual Thai-U.S. joint exercise involving with nearly 12,000 soldiers also participated by troops from Singapore, Japan, and Indonesia is considered the largest military operations in the Southeast Asia region. (AP Photo/Apichart Weerawong)

Thailand's Deputy Supreme Commander Gen. Montri Sangkhasap, center right, and U.S. Executive Charge of Affairs James Enwistle, center left, look at the display of a robot during the opening ceremony of the Cobra Gold military exercise Feb. 4, 2009. (AP Photo/Apichart Weerawong)