Why Baltic shore missiles still need convoy escorts

Would Baltic navies be better served by shore-based anti-ship missiles than by missiles on patrol vessels?

Shore batteries serve a useful role, but ships still need weapons to protect supply routes and accompany convoys.

Anti-ship missiles add capability without occupying much deck space, and some also offer land attack. Naval Strike Missile is the example given. Baltic countries must protect the sea routes carrying supplies to Finland and the Baltic states, so their naval task includes keeping friendly shipping moving. Shore batteries and maritime drones can deny an opponent access without providing the close escort a convoy needs. Frigates remain necessary alongside friendly aircraft and airborne early warning, with armed patrol vessels able to contribute.