Isaiah 2:4 says the nations will beat their swords into what?

Answer: Plowshares

"They will beat their swords into plowshares and their spears into pruning hooks… nor train anymore for war."

“Then He will judge between the nations and arbitrate for many peoples. They will beat their swords into plowshares and their spears into pruning hooks. Nation will no longer take up the sword against nation, nor train anymore for war.”— Isaiah 2:4 (BSB)