The Hilton Young Commission was a Commission of Inquiry appointed in 1927 to look into the possible closer union of the British territories in East and Central Africa.

The Bledisloe Commission was a Royal Commission appointed in 1937 to examine the possible closer union of the three British territories in Central Africa, Southern Rhodesia, Northern Rhodesia and Nyasaland.

The British government appointed the Hilton Young Commission on the possible closer union of the British territories in East and Central Africa in 1927.

Celtisation is also implied by the establishment of joint Raetorum et Vindelicorum regiments alongside the Celtic-speaking Vindelici, and by the union of the territories of both peoples to form the Raetia et Vindelicia province.

The people of the independent State of Somaliland were at that time imbued with a desire to create a union of the Somali inhabited territories, which were French Somaliland (now the Republic of Djibouti), the Ethiopian regions inhabited by Somalis, Italian Somalia and the Northern Districts of Kenya.

Pan-Mongolism is an irredentist idea advocating the union of the contiguous territories inhabited by Mongols into a single independent sovereign state.

Moreover, the preamble to the constitution approved in 1961 included the statement, "The Somali Republic promotes by legal and peaceful means, the union of the territories."