The Post Office Department played an important intelligence role during World War I, enacting the Espionage and Trading with the Enemy Acts, monitoring foreign mail and acting as counter-espionage to help secure allied victory.
The Post Office Department played an important intelligence role during World War I. The Post Office Department was enacting the Espionage and Trading with the Enemy Acts. The Post Office Department was monitoring foreign mail. The Post Office Department was acting as counter-espionage. This was to help secure allied victory.