Amid reports of a possibly imminent reinstatement of a reworked Joint Comprehensive Plan of Action (JCPOA) nuclear agreement, it is likely that Iran’s progress towards developing a nuclear weapon capability may again slow down. While that will be welcomed by its regional foes, military planners’ attention is likely to switch to missiles and other categories of weaponry. GSN assesses the balance of forces and how Iran, Saudi Arabia, other GCC states and Israel are likely to further arm themselves with missile technology.