arab
85% Ethnic Somalis, 15% Non Ethnic Somalis( Bravanese Somalis, Bantus, Bajunis)
unity among its different ethnic groups
Yes. Somalia has been a member of the Arab League since 1974 and one of the two official languages in the country is Arabic (the other is Somali). That said, there are very few ethnic Arabs living in Somalia - the country has a heterogenous population, consisting mostly of ethnic Somalis (~ 85%) and other African tribes.
The is a very slight difference between ethnic and culture. Culture refers to common things done by a particular group while ethnic can be defined a group that has a particular dominant culture.
Darod, primarily. Somaliland is mostly Isaaq. Hawiye dominate south/central Somalia.
The Turks are the most common ethnic group in Turkey.
According to a study performed in 2005, Eritrea has a population of 4,561,500. The people are categorized into 9 ethnic groups: Tigrinya, Tigre, Saho, Afar, Hedareb, Kunama, Bilen, Nara, and Rashaida. There are no major problems between the 9 nationalities who are either Muslim or Christian. Eritrea is a great example of how dwellers can live a harmonious life bringing together many different traditions and values. Everyone co-exists in unity with respect for each other.
Most ethnic groups share a common culture which is their main connection point. Each of the native ethnic groups had their unique culture which they shared and some cut across the board to other ethnic groups.
Inter-ethnic strife.
Somalia's flag was adopted in 1954 and designed by Somali scholar Mohammad Awale Liban. The 5-pointed Star of Unityrepresent the Somali ethnic group. The blue background was originally inspired by the UN flag, in recognition of the UN's help during Somalia's transition to independence. Blue also represents the sky and the Indian Ocean.
Tribal conflict refers to a disagreement between two or more groups from different ethnic backgrounds. This is a very common scenario in Africa where tribes fight each other mostly due to political differences.