It would be Karate
The Samurai were Japan's elite fighting forces, and they wore armor and had several specialized weapons. Sometimes, however, they might lose their weapons during the course of combat. For this reason they were highly proficient at the unarmed Japanese martial art of Jujitsu (Jujutsu). It is thought, however, that Jujitsu had it's roots in China and Tibet.
Judo (without weapons)/Karate (empty hands).
iwo jima
Barbed wire was first used as a war defense system during the Russo-Japanese War of 1904-1905.
The body is made up of a specific defense system and nonspecific defense system. The nonspecific defense system is made up of inflammation, fevers, etc. The immune system is part of the specific defense system. This is because the lysosomes in this system bind to specific antigens and have a certain role to carry out. Therefore, there aren't nonspecific defenses in the immune system.
The specific defense system, more commonly the immune system, is the second type of defense system within the body. It's purpose is to comprise a specific defense measure against a pathogen. The specific defense system is not made up of actual organ structures, but it is made up of billions of cells. Thus, the specific defense system is known as a functional system, as opposed to an organ system.
The National Defense Highway System is usually called the Interstate Highway System or the Eisenhower Highway System.
yes it is different. the Japanese number system is the Chinese number system but the Japanese changed it to make it unique.
The body's defense system is the immune system.
Proper diet,sleep,rest and little exercise should help defense system.
It would be their immune system.
One possibility: Strategic Defence Initiative, otherwise known as Star Wars. Reagan's vision of a missile defense system involving exotic space based weapons and other speculative technologies.