But in a similar sense, massed firepower is also becoming obsolete. Ask Ukraine. A military version of flash mobs minimizes opportunities for detection and atta

But in a similar sense, massed firepower is also becoming obsolete. Ask Ukraine. A military version of flash mobs minimizes opportunities for detection and attack. (What is the naval version of flash mobs ? Iranian speedboats ?) Pervasive airborne surveillance (visual but also EM) makes concentrations vulnerable - whether masses of troops, or large floating hulls. This seems to favor the defense in all scenarios. Depending somewhat on your definition of "the defense".