Warship armor against FPV drones

Do FPV and suicide drones justify several inches of armor and more 20 mm guns on warships?

More light guns are feasible, while subdivision and local protection already contribute to survivability; the extent of future armour changes remains open.

More 20 mm weapons are treated as feasible additions. Modern ships also rely on subdivision and bulkheads to limit how far an explosion spreads. Protection around critical areas, including materials such as Kevlar, is mentioned as part of that existing approach. Whether armour provision expands further remains open. Type 83 is suggested as a programme to watch because its design will follow further development of these threats.