U.S.-made systems are Kyiv’s only means to shoot down ballistic missiles, and Ukraine says it has run out of interceptors. Seventeen Ukrainians died overnight.

A senior State Department official told reporters in a background briefing that it was a “reciprocal” action because Brazil has not approved President Donald Trump’s nominee as ambassador to Brasilia.

The president’s bombast has ceased to rattle world leaders, who have seen him fenced in by courts, rebuffed by Congress and strung along by Iran.