Probably the siege gun.
The labor union's most powerful weapon is the strike.
the most powerful weapon is the lost katana it is +110
the most powerful weapon is the supernova lvl 99. that is the mega version of the harbinger
the iroquois
Great Britain
The weapon of the King of the Gods, Zeus, had to be the most powerful. Otherwise, he would be overthrown by the other gods. Thus, it was his thunderbolt that was the most frightening weapon.
a nuke
canyon
Western Europe has been the richest and most powerful region for most of time, and still is.
Cannons were the most powerful Revolutionary weapons.
the cannons
A thermonuclear warhead