Africa, The New World, and Europe all benefited from this.
the small states benefited the most.
the most dramatic weapon was the airplane
It introduced new weapons.
The development of devastating new weapons technologies.
The most country that benefits from trades is New York.
Rhode Island
the Old World benefited from explorations in the new world because they found gold, crops, and many other things from the explorations.
The people who benefited the most in the colonies from mercantilism were cash crop growers, such as cotton, tobacco, and sugar farmers throughout the New World since they had a constant and massive market for their products. A secondary group that benefited indirectly from mercantilism were smugglers since their entire business sprung up as a way to circumvent the mercantilist restrictions on trade. Smuggling was very lucrative.
Radar, the atomic bomb, tanks, bombers, new dogfighting planes, and new weapons
Chemical weapons and the machine gun
New weapons increased the casualties in ww1 becasue further most we were learning new ways