People gather to watch a national flag-raising ceremony marking the 66th anniversary of the founding of the People's Republic of China on the National Day at the Tiananmen Square in Beijing,  Oct 1, 2015. [Photo/Xinhua]

A national flag-raising ceremony is held at the Tiananmen Square to mark the 66th anniversary of the founding of the People's Republic of China on the National Day in Beijing,  Oct 1, 2015. [Photo/Xinhua]

A national flag-raising ceremony is held at the Tiananmen Square to mark the 66th anniversary of the founding of the People's Republic of China on the National Day in Beijing, Oct 1, 2015. [Photo/Xinhua]

A soldier is on patrol during a national flag-raising ceremony marking the 66th anniversary of the founding of the People's Republic of China on the National Day at the Tiananmen Square in Beijing, Oct 1, 2015. [Photo/Xinhua]