المملكة المتوكلية اليمنية
The Mutawakkilite Kingdom of Yemen, which occupied the northern portion of modern Yemen, followed an isolationist foreign policy under King Yahya Muhammad Hamid ed-Din. It formed an alliance with Italy in 1936, and yet it remained neutral for the duration of the war. The southern portion of modern Yemen, known as the Aden Protectorate, was under British control.