With its soldiers fighting abroad, Britain was also at risk of invasion. The Home Guard was formed from people between 51 (the maximum conscription age for men) and 65, and others who did not pass medical tests to join the armed forces. Their job included:
Guarding important points
Observation and reporting - prompt and precise.
Immediate attack against small, lightly armed parties of the enemy.
The defence of roads, villages, factories and vital points in towns to block enemy movement."