The national flag of São Tomé and Príncipe is a horizontal triband of green, yellow, and green, with a red isosceles triangle at the hoist and two five-pointed black stars on the yellow band. The flag's aspect ratio is 1:2 and the ratio of the bands are 2:3:2. The flag was adopted upon São Tomé and Príncipe's independence from Portugal on 12 July 1975. The design is based on, and nearly identical to, the first flag of the Movement for the Liberation of São Tomé and Príncipe (MLSTP), which led the country to its independence. Wikipedia