The US developed many secret weapons during World War 2.
The most widely know toward the end of the war and shortly afterward was the Norden Bomb Site, which was claimed to provide very high accuracy in placing bombs on target. The claim has been shown to have been exaggerated.
The secret weapon most widely known now, many decades after the war, is the Atomic bomb, which was developed to meet a German threat, but was used to end the war with Japan. But this was not a strictly US development. The atomic bomb was developed jointly by the US, UK, and Canada, working together on the Manhattan Project at sites mostly within the continental US.
greek fireThe first military secret weapon was called Greek fire.
horses
Roman engineering did not have any secret weapons. None of the Roman engineering achievements were kept secret.
Atom Bomb
Ships
Manhattan Project
Hannibal's secret weapon was the use of elephants
Kesha song secret weapon is about a secret that she wants to tell
Secret Weapon - song - was created in 2007.
A-Town Secret Weapon was created in 2006.
The labor union's most powerful weapon is the strike.
If by "bomb" you mean a conventional explosive weapon, then the nuclear weapon is more powerful.
it's where someone called Dominic has a secret weapon and the secret weapon is to pump!
Secret Weapon - album - was created on 2007-07-16.
the byzantines secret weapon which burns on water is your mom!
no there isn't, millions of people play halo and no one have found a secret weapon. hay, it would be awesome to find a secret weapon but there isn't one!!!!!!
There is only one secret weapon, and It's in campaign. The draganov.