The chief executive of Rheinmetall, Germany’s biggest defence contractor, said Europe needed to step up its investment in low-cost air-defence systems to counter the increasing threat from Russian drones.
德国最大防务承包商莱茵金属(Rheinmetall)的首席执行官表示，欧洲需要加大对低成本防空系统的投资，以应对俄罗斯无人机日益增长的威胁。
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