ground-controlled intercept

military technology

Also known as: GCI

Written by

The Information Architects of Encyclopaedia Britannica

Last updated

June 29, 2026

Quick Summary

Ground-controlled interception (GCI) is a military air defense tactic where fighter pilots receive directions to intercept targets from radar stations on the ground. This method of air defense relies on ground-based radar to track both friendly and enemy aircraft, guiding the fighter pilots to their targets. GCI was a significant development in air defense strategy, allowing for more coordinated and effective interception of enemy aircraft.12

Summary created from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles.

2 Britannica Sources

Ask Britannica AI about this topic

Britannica doesn't have a full article on this topic, so we've curated a list of our relevant coverage.

military communication
World War II and after
…aircraft—the system called GCI (ground-controlled intercept). Radio-controlled guidance of falling bombs enabled an operator in a bomber to direct a bomb to the target. Electronic countermeasures made their appearance in the form of jamming transmitters to jam radio channels and radar, navigation, and other military electronics.
Read More
…aircraft—the system called GCI (ground-controlled intercept). Radio-controlled guidance of falling bombs enabled an operator in a bomber to direct a bomb to the target. Electronic countermeasures made their appearance in the form of jamming transmitters to jam radio channels and radar, navigation, and other military electronics.
Read More