What future item could replace a atomic bomb?

One possible future technology that could potentially replace atomic bombs is directed energy weapons. These weapons use focused energy beams, such as lasers or particle beams, to target and destroy enemy targets. Advantages of directed energy weapons include precision targeting, reduced collateral damage, and potentially unlimited ammunition. Additionally, they may have the ability to neutralize threats without causing widespread destruction and radioactive fallout like atomic bombs. However, there are still many technical and ethical considerations that need to be addressed before directed energy weapons could be widely used as a replacement for atomic bombs.