The Pentagon is going to sell about 200 Patriot missiles worth about $900 million to Kuwait. The goal is to build up anti-missile systems in the Persian Gulf. The Associated Press’s Anne Flaherty writes, the initiative is aimed at defending Gulf allies against potential Iranian missile strikes and to signal to Tehran that any aggression would not go unanswered. The Defense Security Cooperation Agency announced Wednesday that it had notified Congress of the proposed sale. Congress could object but is not expected to do so.