Pentagon’s Iran war bill nears $30bn as Donald Trump renews threats
Lawmakers demand answers as mounting cost of conflict weighs on the economy
Lawmakers demand answers as mounting cost of conflict weighs on the economy

Use of costly missiles and air defence interceptors raises alarm about US readiness for other conflicts

Fulfilling the Pentagon’s request would allow the US to prolong and escalate the conflict indefinitely

Rapid depletion of stockpile including Tomahawk missiles raises pressure on Trump over cost of conflict

Formidable obstacles stand in the way of any diplomatic effort to end the war

US president soothes markets but doubts on strategy and Tehran’s position persist

President’s latest mixed signal comes as US sends more troops to region