Members of the Jordanian 77th Marines Battalion engage targets during a squad attacks exercise in Al Quweyrah, Jordan, May 19, 2016. Eager Lion is a recurring exercise between partner nations designed to strengthen military-to-military relationships, increase interoperability, and enhance regional security and stability. - Members of the Jordanian 77th Marines Battalion engage targets during a squad attacks exercise in Al Quweyrah, Jordan, May 19, 2016. Eager Lion is a recurring exercise between partner nations designed to strengthen military-to-military relationships, increase interoperability, and enhance regional security and stability.