You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "What was founded in 1941 as a regiment, and later reconstituted as a corps in 1950, that fought along side a Greek special forces unit formed in 1942 in the Middle East in the Western Desert and the Aegean?" whose answer is Special Air Service.
Each document should contain about 30 words, and these documents should contain useful information.

Query: British military unit founded in 1941 as a regiment, reconstituted as a corps in 1950, fought in Western Desert and Aegean during World War II
Useful Output:

Doc 1: 1st Airborne Division – Formed 4 November 1941 in the UK. Served in North Africa from April 1943 until July 1943, Sicily in July 1943 until September 1943,
Doc 2: Formed in 1941, this corps carried out reconnaissance duties for British Army infantry divisions during the Second World War. It was disbanded in 1946.
Doc 3: Wavell was replaced by General Auchinleck as commander-in-chief, Middle East, on 1 July 1941, and the Western Desert Force was reformed as the Eighth Army.
Doc 4: The Special Air Service (SAS) is a special forces unit of the British Army. It was founded as a regiment in 1941 by David Stirling.
Doc 5: On the 9 September 1941, in anticipation of a new British and Allied offensive, 8 Army was formed with the Western Desert Force (now redesignated as XIII Corps)