On March 28-29, 2026, Iran-backed Houthi forces entered the Iran war, attacking a US military installation in Kuwait and injuring 10 soldiers. Over a dozen US service members were also injured in an attack on a Saudi base. By day 31 of the conflict, the Pentagon put cumulative US casualties at 13 killed and more than 300 injured. US-Israeli overnight strikes hit Tehran and other cities on March 30, targeting power infrastructure and causing blackouts. US Central Command stated it had struck over 11,000 targets in Iran since the war began on February 28. The expansion of the conflict to include Houthi forces and attacks on US bases in Gulf states represents a significant escalation with implications for defense spending and emergency powers.