Step 1: Understanding the Concept:
Intelligence agencies are government bodies responsible for the collection, analysis, and exploitation of information to support national security, law enforcement, and foreign policy objectives.
Different countries have their own premier intelligence agencies.
Step 2: Detailed Explanation:
The "Inter-Services Intelligence," commonly known by its acronym ISI, is the premier intelligence agency of Pakistan.
It was founded in 1948 and is responsible for gathering, processing, and analyzing national security information from around the world.
The ISI is primarily composed of officers from the three branches of the Pakistan Armed Forces (Army, Navy, and Air Force), hence the name "Inter-Services."
It plays a significant role in Pakistan's domestic and foreign policy.
Step 3: Final Answer:
The Inter-Services Intelligence (ISI) is the intelligence agency of Pakistan.