Which countries have nuclear weapons, and how many do they have?

Second on the listing is the US, whose nuclear arsenal is just marginally smaller than Russia’s.

The first-ever nuclear energy, the US has been armed with atomic weapons since 1945.

Most estimates place the present American stockpile at round 5500 robust.

According to the January 2023 entry into FAS’s Nuclear Notebook, the precise quantity is 5244, down from 5428 the yr earlier than.

That lower makes the US the one nuclear-armed nation that’s lowering the dimensions of its stockpile; all others are both sustaining or growing them.

The ACA places the US’ complete warheads at 5550, though its information is from late 2021.

As with Russia, over a thousand of them have been retired and will likely be dismantled.