A U.S. general proposed on Monday that Israel upgrade its anti-missile systems to include neighboring Jordan and possibly Egypt, and an Israeli official cautiously welcomed the idea.

The two Arab countries that have full peace treaties with the Jewish state share some of its concern regarding the disputed nuclear program of Iran and the civil war wracking Syria – both states with long-range missile arsenals.

Jordan’s Red Sea port of Aqaba is also under threat from short-range rockets fired by Islamist militants in the largely lawless Egyptian Sinai – though they have more regularly targeted the next-door Israeli resort of Eilat.