America is ramping up new attacks on Iran even as its own missile defenses run dangerously low, a warning sign that this war is getting harder to sustain.

• The US is launching fresh strikes on Iran, timed for weekends when markets are closed.
• America's Patriot and THAAD interceptor stockpiles have fallen sharply since the war began, and rebuilding them could take three years or more.
• Trump keeps promising a deal while attacking, and now sounds frustrated and angry that talks are going nowhere.
• The war is stretching the US thin across too many fronts — Ukraine, Gaza, Iran, and trade fights with China over critical minerals.
• At home, hospitals are getting squeezed as millions lose health coverage, while data centers are pitched as the main jobs plan.

Outlook: Expect more back-and-forth strikes, but shrinking defenses and growing political pushback suggest the current pace can't last.