A North Vietnamese battleship against French sea power

Would a modernized North Vietnamese Hanoi-class battleship be too great a threat for France?

It would be locally formidable, but France could concentrate carriers, submarines, and battleships to destroy an isolated capital ship.

The hypothetical ship mounts six 12-inch guns and substantial secondary armament, making it a serious threat to ordinary French forces in Indochina. A one-for-one comparison is misleading because France could assemble a complete task force with aircraft carriers, submarines, and its own battleships. A conspicuous capital ship without comparable fleet support would become a priority target for air and underwater attack. If it survived until American intervention, refreshed U.S. 16-inch battleships would add another overwhelming opponent.