This is going to be a matter of personal opinion, as there is no real way of testing to prove one way or another.
There are many different systems that are all based very similar concepts, including Krav Magna and Jeet Kune Do that are just as effective. Even the Military Hand to hand combat systems are very effective.
Fight Club
a system that's fighting for land
Your question is simple, the answer is complex. The variety of fighting systems means what works in one system may not work in any other system
The immune system
fire truck
That would be the immune system
He was one man fighting against an entire system.
no its oart of your immune system
fighting eating and drinking
A good immune system is the best help in fighting off infectious diseases. If the system is suppressed, the disease has a better chance of getting a foothold.
A fire fighting system typically consists of fire alarms, sprinkler systems, fire extinguishers, and other equipment designed to detect and suppress fires. These systems are crucial for early detection and containment of fires in buildings to protect people and property.
the purpose was to prevent the countries from fighting they were the agreements