Somalis:

The Somali flag is an ethnic flag conceived to represent ethnic Somalis. It was created in 1954 by the Somali scholar Mohammed Awale Liban, after he had been selected by the labour trade union of the Trust Territory of Somalia to come up with a design. Upon independence in 1960, the flag was adopted as the national flag of the nascent Somali Republic. The five-pointed Star of Unity in the flag's center represents the Somali ethnic group inhabiting the five territories in Greater Somalia.

Please answer a question about this article. If the question is unanswerable, say "unanswerable". What is the star at the center of the Somali flag called?
Star of Unity