Changes
→{{Anchor|1-4}}World 1-4: 南西諸島防衛線 The line of defense at Nansei islands
| code = 南1号作戦 ([https://ja.wikipedia.org/wiki/%E5%8D%97%E5%8F%B7%E4%BD%9C%E6%88%A6 First Southern Operation Tactics])
| code = 南1号作戦 ([https://ja.wikipedia.org/wiki/%E5%8D%97%E5%8F%B7%E4%BD%9C%E6%88%A6 First Southern Operation Tactics])
| text = 南西諸島の防衛ライン上の敵侵攻艦隊を捕捉、全力出撃でこれを撃滅せよ！
| text = 南西諸島の防衛ライン上の敵侵攻艦隊を捕捉、全力出撃でこれを撃滅せよ！
An enemy invasion fleet is pressing on the defensive line in the Nansei Islands. Sail out in full force and destroy them!
}}
}}