Soldiers with the national flag of Eritrea and date 1991 (not an issue date) are symbolizing the struggle for independence from Ethiopia.

The Eritrean War of Independence was a conflict fought between the Ethiopian government and Eritrean separatists, both before and during the Ethiopian Civil War. The war started when Eritrea's autonomy within Ethiopia, where troops were already stationed, was revoked.

Eritrea had become part of Ethiopia after World War II, when both territories were liberated from Italian occupation. The war went on for 30 years until 1991, when the Eritrean People's Liberation Front (EPLF) defeated the Ethiopian forces in Eritrea, and the Ethiopian People's Revolutionary Democratic Front (EPRDF), with the help of the EPLF, took control of Ethiopia and removed the Marxist–Leninist People's Democratic Republic of Ethiopia (PDRE) from the Ethiopian capital of Addis Ababa.

Common ostrich left, divide denomination. Date on right.

The ostrich or common ostrich (Struthio camelus) is a large flightless bird native to Africa, with a long neck and legs they can run at up to about 70 km/h (19 m/s; 43 mph), the fastest land speed of any bird. The ostrich is the largest living species of bird and lays the largest eggs of any living bird. It lives in nomadic groups of 5 to 50 birds. When threatened, the ostrich will either hide itself by lying flat against the ground, or run away. If cornered, it can attack with a kick of its powerful legs. Mating patterns differ by geographical region, but territorial males fight for a harem of two to seven females.