The Ogaden War, also known as the Ethio-Somali War (Somali: Dagaalkii Xoraynta Soomaali Galbeed, Amharic: የኢትዮጵያ ሶማሊያ ጦርነት, romanized: ye’ītiyop’iya somalīya t’orinet), was a military conflict between Somalia and Ethiopia fought from July 1977 to March 1978 over control of the sovereignty of the Ogaden region. Somalia launched an invasion in support of the Western Somali Liberation Front (WSLF) insurgency, triggering a broader inter-state war. The intervention drew the disapproval of the Soviet Union, which subsequently withdrew its support for Somalia and backed Ethiopia instead.
Ethiopia was saved from defeat and permanent loss of territory through a massive airlift of military supplies worth $1 billion, the arrival of more than 12,000 Cuban soldiers and airmen and 1,500 Soviet advisors, led by General Vasily Petrov. On 23 January 1978, Cuban armored brigades inflicted the worst losses the Somali forces had ever taken in a single action since the start of the war.