世界已经习惯了美国使用无人机对阿富汗、巴基斯坦和也门实施空袭，但最新报道显示，中国和日本也在投资无人机 — — 部分是为了在东海岛争中占得先机。
The world has grown used to US drone strikes in Afghanistan, Pakistan, and Yemen, but recent news reports suggest that China and Japan are also investing in unmanned aircraft – in part to enhance their leverage in disputes over islands in the East China Sea.