2. ChinaThe People's Liberation Army of China is the largest in the world numbering over two million soldiers even after significant cuts in forces in recent years.
The Chinese Army was established in 1927 and involved in the Sino-Japanese conflict, World War II, Korean War and Vietnam.
While technically service is required for all men over the age of 18, China has never had to draft soldiers as there has always been more than enough Chinese men who have volunteered for military service to their country.