| Military expenditure (% GDP) | No authoritative open source found |
| Military expenditure | No authoritative open source found |
| Armed forces personnel | 1,000 peopleWorld Bank WDI [1999] |
| Arms imports | No authoritative open source found |
| Arms exports | No authoritative open source found |
| Military & security forces | Armed Forces of Sao Tome and Principe (Forcas Armadas de Sao Tome e Principe, FASTP): Army, Coast Guard of Sao Tome e Principe (Guarda Costeira de Sao Tome e Principe, GCSTP), Presidential Guard, National Guard (2025); note: the Army and Coast Guard are responsible for external security while the public security police and judicial police maintain internal security; both the public security police and the military report to the Ministry of Defense and Internal Affairs; the judicial police report to the Ministry of Justice, Public Administration, and Human RightsCIA World Factbook [2025] · 2026 archive |
| Military service age & obligation | limited information; 18 is the minimum age for compulsory military service (reportedly not enforced) and 17 years of age (with parental permission) for voluntary service (2024)CIA World Factbook [2025] · 2026 archive |
| Arms imports (USD) | No authoritative open source found |
| Arms exports (USD) | No authoritative open source found |
| Military spending (% of GDP) | No authoritative open source found |
| Military spending (USD) | No authoritative open source found |