South Korean Military

 From Reuters:

 

SEOUL, Aug 10 (Reuters) - South Korea's military shrank by 20% in the past six years to 450,000 troops, largely due to a sharp drop in the population of males of enlistment age for mandatory service in the country with the world's lowest birthrate, a report said on Sunday.

The dramatic decline in the pool of available males for military service is also causing a shortfall in the number of officers and could result in operational difficulty if it continues, the defense ministry said in the report.