They say the international community must act now to hold Beijing accountable for atrocities in Xinjiang.
The Missile Defense Agency deemed the first Guam test successful, noting debris fell into the ocean.
Beijing may now be forced to rethink its alignment with Iran and Russia in the Middle East.
Training indicates the country could be implementing Kim Jong Un’s plans to mass produce military drones.
The military hopes an election that China is supporting will legitimize its rule.
The announcement came a few weeks after the US announced a semiconductor export control package against China.
Thousands have fled the offensive, as rebels report military deployment of Chinese drones.