Tag Archives: Countersign

The Original Click Bait: Identifying Friend or Foe with the WWII Cricket Clicker

During Operation Overlord, the WWII D-Day Invasion into Normandy, France on June 6th 1944, American Paratroopers carried a signaling device… View Article

Posted in History | Tagged , , , , , , , , , , , , , , , , , , | 15 Comments

The Language of Espionage: Signs, Countersigns and Recognition

When the moon is full, the tide is high. For me, some of the most memorable signs and countersigns come… View Article

Posted in Tradecraft | Tagged , , , , , , , , , , , , , , , , | 18 Comments