Vietnamese Prime Minister Nguyen Tan Dung (R) meets with visiting Iranian President Mahmoud Ahmadinejad at the Government Palace in Hanoi, Vietnam, Nov. 9, 2012. Ahmadinejad arrived here on Friday, kicking off a two-day visit to Vietnam. (Xinhua/Ho Nhu Y)

Vietnamese President Truong Tan Sang (L) and visiting Iranian President Mahmoud Ahmadinejad review the honor guards at the Presidential Palace in Hanoi, Vietnam, Nov. 9, 2012. Ahmadinejad arrived here on Friday, kicking off a two-day visit to Vietnam. (Xinhua/Ho Nhu Y)

General Secretary of the Communist Party of Vietnam (CPV) Central Committee Nguyen Phu Trong (R) meets with visiting Iranian President Mahmoud Ahmadinejad in Vietnamese capital Hanoi on Nov. 9, 2012. Ahmadinejad arrived here on Friday, kicking off a two-day visit to Vietnam. (Xinhua/Ho Nhu Y)

Vietnamese President Truong Tan Sang (R) and visiting Iranian President Mahmoud Ahmadinejad hold a joint press briefing at the Presidential Palace in Hanoi, Vietnam, Nov. 9, 2012. Ahmadinejad arrived here on Friday, kicking off a two-day visit to Vietnam. (Xinhua/Ho Nhu Y)