最終更新日：2025/11/26
The security of the region depends on the stability of the first island chain, which stretches from the Kuril Islands and the Japanese Archipelago through the Ryukyu Islands and Taiwan to the northern Philippines and Borneo.
正解を見る
The security of the region depends on the stability of the first island chain, which stretches from the Kuril Islands and the Japanese Archipelago through the Ryukyu Islands and Taiwan to the northern Philippines and Borneo.
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