The heraldic rose, symbol of secrecy and confidence, refers to sub rosa which is Latin for under the rose. It has been a traditional symbol to describe something to be kept secret and not repeated anywhere. The compass rose at center, a symbol for guidance and navigation, and the globe with grid lines, represent the world wide mission of the organization.
On the reverse, the griffin is a regal heraldic beast of diligence, strength and power. It is grasping a bundle of arrows to underscore the danger and combat side of being sent to dangerous areas of the world.