The US is sending significant numbers of jet fighters and support aircraft to the Middle East, assembling the greatest amount of air power in the region since the 2003 invasion of Iraq, The Wall Street Journal reports.

The US is ready to take action against Iran, but President Donald Trump hasn’t decided whether to order strikes or—if he does order them—whether the aim would be to halt Iran’s already-battered nuclear program, wipe out its missile force, or try to topple the regime, added The Wall Street Journal.