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Chinese honour guards prepare for the arrival of Myanmar President U Thein Sein and Chinese President Xi Jinping during a welcome ceremony outside the Great Hall of the People in Beijing on June 27,2014. U Thein Sein is on a visit to China from June 27 to 30.

Wang Zhao/AFP

Chinese honour guards prepare for the arrival of Myanmar President U Thein Sein and Chinese President Xi Jinping during a welcome ceremony outside the Great Hall of the People in Beijing

A Chinese honour guard (2nd-R) uses a string to make sure guards stand in line before the arrival of Sri Lankan President Mahinda Rajapaksa outside the Great Hall of the People in Beijing on May 28,2013. Mahinda Rajapaksa is on a two-day visit to China.

Zhao Wang/AFP

A Chinese honour guard (second right) on Tuesday uses a string to make sure guards stand in line outside the Great Hall of the People in Beijing ahead of the arrival of Sri Lankan president Mahinda Rajapaksa.