The U.S. and Ukraine both face the same challenge of a shortage of Patriot missiles to intercept ballistic missiles. But for Ukraine, the threat is existential.

Russia’s ballistic missile attacks on Ukraine pose an urgent question for NATO leaders.

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…

Kyiv has run out of Patriot interceptors, but allies remain reluctant to supply more.