- Absence of military (notes): This list shows countries that have no permanent army, whose defense has been assigned to non-military forces such as the police, or is assumed by the military forces from other countries by virtue of a treaty. Each entry describes the current status of each country on regards to its defense.
- Branches: The names of the ground, naval, air, marine, and other defense or security forces
- Imports > USD: Arms transfers cover the supply of military weapons through sales, aid, gifts, and those made through manufacturing licenses. Data cover major conventional weapons such as aircraft, armored vehicles, artillery, radar systems, missiles, and ships designed for military use. Excluded are transfers of other military equipment such as small arms and light weapons, trucks, small artillery, ammunition, support equipment, technology transfers, and other services."
- Manpower > Reaching military age annually > Males: The number of draft-age males and females entering the military manpower pool in any given year and is a measure of the availability of draft-age young adults.
- Manpower reaching military age annually > Males: This entry is derived from Military > Manpower reaching military age annually, which gives the number of males and females entering the military manpower pool (i.e., reaching age 16) in any given year and is a measure of the availability of military-age young adults.
- Military branches: This entry lists the service branches subordinate to defense ministries or the equivalent (typically ground, naval, air, and marine forces).
- War deaths: Battle-related deaths are deaths in battle-related conflicts between warring parties in the conflict dyad (two conflict units that are parties to a conflict). Typically, battle-related deaths occur in warfare involving the armed forces of the warring parties. This includes traditional battlefield fighting, guerrilla activities, and all kinds of bombardments of military units, cities, and villages, etc. The targets are usually the military itself and its installations or state institutions and state representatives, but there is often substantial collateral damage in the form of civilians being killed in crossfire, in indiscriminate bombings, etc. All deaths--military as well as civilian--incurred in such situations, are counted as battle-related deaths."
SOURCES: Wikipedia: List of countries without armed forces (Countries with absolutely no military forces); All CIA World Factbooks 18 December 2003 to 18 December 2008; Stockholm International Peace Research Institute (SIPRI), Yearbook: Armaments, Disarmament and International Security.; CIA World Factbooks 18 December 2003 to 28 March 2011; CIA World Factbooks 2010, 2011, 2012, 2013; Uppsala Conflict Data Program, http://www.pcr.uu.se/research/ucdp/.
- Samoa ranked 17 places from the bottom for manpower fit for military service > males age 16-49 amongst Hot countries in 2013.
- Samoa ranked 8th last for manpower reaching militarily significant age annually > males amongst East Asia and Pacific in 2013.