This can either be Louis Thurstone's Primary Mental Abilities or Howard Gardner's Multiple Intelligence. Both can support this premise because it illustrates that intelligence is not general unlike the theory proposed by Charles Spearman. In Thurstone's and Gardner's theories, a person can e intelligent in one aspect and not on another. This is because there are multiple areas of intelligence and it is not rarely possible for a person to excel in every area.
Answer: Foreign Internal Defense
Explanation: Foreign Internal Defense could simply be defined as the joint effort used in combating unrest in a foreign country. The foreign country being the Host Nation is aided through external support provided by other countries through the provision of a joint, synchronized effort of civilian, the military and other government agencies providing multidisciplinary support in a bid to assist the Host Nation of getting rid of unrest such as subversion, terrorism, banditry and other forms of threat to National security.
I pretty sure it was a system to deliver messages.
