The United States expressed its concern last year after China fired a missile at one of its old satellites and destroyed it, sending thousands of dangerous pieces of space debris into orbit.

• 去年中国发射一枚飞弹击中一颗老旧的中国卫星并将之摧毁，造成数千个碎片并危及了轨道安全，美国队此行为表达关切。