Classify the given system as centralized or distributed.
System Name: International Security System
Description: The International Security System is a large-scale security system that is managed by a centralized authority.
The given system, International Security System, is a centralized system.
Complete the following task based on the instruction and optional input provided.### Instruction:
Classify the given system as centralized or distributed.

### Input:
System Name: International Security System
Description: The International Security System is a large-scale security system that is managed by a centralized authority.

### Output:
The given system, International Security System, is a centralized system.