Thailand's five days of clashes with Cambodia in July marked the fourth recent conflict to erupt on China's doorstep.

China and the Philippines have each unfurled their national flags on tiny sandbars in the South China Sea, staking competing sovereignty claims in strategic waters seen as a potential flashpoint ...

It's China's second sample return mission to the Moon, and the fourth to its surface, including two rovers. The flag itself differs greatly from the ones we fly back on Earth.