blood chit
A 'blood chit' is a vital document for military personnel, especially pilots, ensuring they receive help from civilians in hostile territories.
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Definition
C1Military Operations
(technical, formal)A document carried by military personnel, requesting help from civilians and promising a reward for assistance in returning to friendly forces.
Example
- The pilot carried a blood chit in case he was shot down over enemy territory.
C2Aviation
(technical)A form signed by passengers on private or military aircraft, releasing the operator from liability in case of an accident.
Example
- Before the flight, each passenger had to sign a blood chit.