What are the risks of an attack on Iran?

President Donald Trump appears to be on the cusp of ordering an attack on Iran, but some Pentagon insiders are warning of potential risks of a new war in the Middle East. Any escalation could bring significant long-term conflict.

The possible downsides of attacking Iran include “U.S. and allied casualties, depleted air defenses and an overtaxed force,” said The Wall Street Journal. Trump is considering a range of options from a quick-hit strike to a longer aerial bombing campaign. While...