Alternative History
202 squadron RAF crest

Gibraltar - since 1704 occupied by Great Britain, since 1713 "forever" ceded officially by Spain, is still considered an impregnable fortress and is in World War II essential for the Empire, for controlling the western entry of the Med. Two bataillons of infantry and some artillery are defending the fortress currently, reinforcements are expected. There are numerous underground tunnels and galleries, which are even more fortified than the Maginot Line, and enough food to last for 18 months, for 10,000 men. Squadron No. 202 already was moved there. Gouvernor General Sir Clive Liddell has been preparing evacuating the civil population to Casablanca in French Morocco, which happened in June.

Flag of the United Kingdom   British Empire
(How many Sixes does Adolf Nazi have to Roll?)
  
Flag of the United Kingdom
  United Kingdom of Great Britain and Northern Ireland  
  The Crown Dependencies:  

Channel Islands | Isle of Man

  The Dominions:  

Canada | Australia | New Zealand | South Africa | Newfoundland | Southern Rhodesia

  The League of Nations mandates:  

Iraq | Palestine | Transjordan | Togo | Tanganjika | Southwest Africa

  The crown colonies:  

British India | Ceylon | Burma | Straits Settlements | Gibraltar | Malta | Cyprus | Aden | Sudan | Nigeria | Gold Coast | Sierra Leone | Uganda | Kenya | Tanganjika | Zanzibar | Northern Rhodesia | Nyasaland | Swasiland | Basutoland | Bechuanaland | Mauritius | Seychelles | St. Helena | Ascension | Gambia | Jamaica