Active military personnel are those "ready-to-fight" elements. This listing is for the purposes of detailing the total active military manpower available to any one country today - these forces naturally becoming the initial elements that would be committed to combat.
Active Military Personnel data through 2013.
Partial Sources: CIA.gov, CIA World Factbook, wikipedia.com, public domain print and media sources and user contributions. Some values may be estimated when official sources are lacking.