Which aircraft?
In WWII armament ranged from zero (trainers, etc) to rifle-calibre machine guns, heavy machine guns, cannons (15 mm upwards), heavy guns (57 mm, 75 mm, 105 mm), rockets, torpedoes, bombs, mines...
The most important different between WW I and WW II is there is a lot modern weapons and atomic bombs are used in WW II.
Yes, weapons were used at sea in WW II. Projectile inertia and explosives. Static explosives were the main ones.
the WW II weapons were important because if there were no weapons there would be less extreme fighting. Also less people would get wounded.
Check out Bruce Canfield's book on infantry weapons of WWII
No, it was not WW II.
In WW I, the water-cooled machine gun, and the squad automatic rifle were the most modern weapons, honorable mention to the American Colt M1911 pistol. In WW II, the list is very lengthy. The M1 Garand rifle was the most modern military shoulder rifle of all the warring nations, and the bazooka was a new type of weapon during WW II. WW II was the first war to use submachine guns extensively, but they had been invented right after World War I, hence were not "new". Newer weapons continued to be introduced - especially by the United States and Germany - all the way through WW II.
Weapons used during WW II included rifles, tanks, hand grenades, machine guns, and atomic bombs (only at the end).
WW II was largely the result of lingering resentment by Germany about the outcome of WW I. You could describe it in sports terminology as a rematch.
There is no world war you. Your choices are WW I and WW II. The treaty which ended WW I was the Treaty of Versailles. WW II did not have a treaty as such, atlhough the Yalta Conference did produce an agreement.
The Yorktown was a class of US aircraft carriers during WW II. Yamato was Japan's largest battleship.
Was created by the UN.
During WW II there were a few weapons made to do that- with VERY limited success. You are probably speaking of the CornerShot that was recently developed in Israel.