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Armed forces

The defence of Gibraltar, as a British territory, is the responsibility of the national (i.e., British) government, with its tri-services British Forces Gibraltar:

In January 2007, the Ministry of Defence announced that the private company Serco would provide services to the base. The announcement resulted in the affected trade unions striking.

Gibraltar has an important role in UKSIGINT and provides a vital strategic part of the United Kingdom communications gathering and monitoring network in the Mediterranean and North Africa.

Historically, Gibraltar was one of four Imperial fortress colonies, along with Bermuda, Halifax, Nova Scotia and Malta.