As the months passed, fighting continued between the two Vietnamese sides, with each blaming the other.
It is best known as a border town on the Vietnamese side of the main road and rail crossing to China.
Luggage has to be x-rayed on the Vietnamese side of the border!
In the end, for our 58,000 dead, the casualties on the Vietnamese side were in the millions.
"We intend to pursue this matter, and the Vietnamese side was very open," he said.
"The Vietnamese side shall be held responsible for the ensuing consequences."
For some reason, there are none to be seen on the Vietnamese side.
The casualties were not all on the Vietnamese side, however.
Our men were very worried, and couldn't see how they could last very long over on the Vietnamese side of the border.
The peak, narrowly on the Vietnamese side, is 3,076 metres tall.