ROK Navy have sunk a armed ship embarked 600 guerrillas at the Busan sea(the Korean Strait Sea War). We secured Busan area that was the very important harbor for reinforcement and logistics. If North Korea army occupied Busan city, An aspect of The Korean War took a entirely new turn.
As ROK Navy and Marine secured the Tongyoung area in Tongyoung amphibious operation, UN army kept Masan and Jinhae area that was the western line of that. And that operation was the only attack operation for UN army counterattact.
It was significant to secure a important strategic point before Incheon amphibious operation by succeeding Youngheungdo recapture and X-Ray operation. If ROK and UN army's intelligence force didn't send necessary information to MacArthur command, it was hard to decide the performance of Incheon amphibious operation.
It took a long time to sweep the sea mines at the Youngheung bay, so Weonsan amphibious operation became administration landing. Finally, it didn't have a strong point as amphibious operation.
A large number of armed forces and civilian could be evacuated to the rear area by Heungnam evacuation operation. ROK military forces and UN army could preserve their combat strength so that they could perform the future operation.