Flag of Lithuania

The national flag of Lithuania consists of a horizontal tricolour of yellow, green, and red. It was adopted on 25 April 1918 during Lithuania's first period of independence (1918–1940), which ceased with the occupation first by the Soviet Union, and then by Nazi Germany (1941–1944). During the post-World War II Soviet occupation, from 1945 until 1988, the Flag of the Lithuanian SSR consisted first of a generic red Soviet flag with the name of the republic, in 1953 that was changed to the red flag with white and green bands at the bottom.

Passed on 26 June 1991, the Law of the Republic of Lithuania on the Lithuanian State Flag (Law No. I-1497) governs the design, sizes and use of the state flag. The law was amended on 8 July 2004, (Law No. IX-2331) with the most notable changes including the switching of the national flag ratio from 1:2 to 3:5 and the official adoption of a historical flag as the state (government) flag. The amendment came into force on 1 September 2004, after it was approved by President Valdas Adamkus. The yellow in the flag is meant to symbolise the sun and prosperity, the green is for the forests, the countryside, liberty, and hope, and the red represents the blood and bravery of those who have died for Lithuania. The proper colours of both the national and state flag are made according to the Pantone Matching System, specifically Pantone textile-paper (TP). The ratio of both the national and state flag must be 3:5, with the standard flag size to be 1.0 by 1.7 metres (3.3 by 5.6 ft). Different sizes of the flag can be created, but they must conform to the colour codes and ratio requirements set in the law.