A 42nd Electronic Combat Squadron EF-111A breaks away from a 48th Tactical Fighter Wing F-111F to take up a pre-planned jamming circuit as the latter nears Libyan territory in April 1986.

Electronic countermeasures (ECM) have been a vital requirement in conflict since the early part of World War Two. Placing the jamming and interception equipment in the critical location involves a wide variety of aircraft platforms, in some cases operating right inside the enemy’s own environment.


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