When Russia fires a ballistic missile at Ukraine, air-defense systems have only minutes — sometimes seconds — to detect and intercept the deadly threat.

The U.S. and its partners depend on Patriot interceptors to shoot down incoming ballistic missiles. But Russia and Iran are firing their weapons at rates far higher than Patriots…

Ukraine’s success depends not only on manufacturing Patriot missiles, but also on leveraging the partnership to strengthen its own missile engineering capabilities for decades to…