One facet of the U.S.–Israel strategic relationship is the joint development of the Arrow Anti-Ballistic Missile Program, designed to intercept and destroy ballistic missiles. This development is funded by both Israel and the United States. The Arrow has also provided the U.S. with the research and experience necessary to develop additional weapons systems. So far, the development cost has been between $2.4 and $3.6 Billion, with the United States picking up 50% of the final costs.
In April 1996, President Bill Clinton and Prime Minister Shimon Peres signed the U.S.–Israel Counter-terrorism Accord. The two countries agreed to further cooperation in information sharing, training, investigations, research and development and policymaking.
 Homeland security
At the federal, state and local levels there is close Israeli–American cooperation on Homeland Security. Israel was one of the first countries to cooperate with the U.S. Department of Homeland Security in developing initiatives to enhance homeland security. In this framework, there are many areas of partnership, including preparedness and protection of travel and trade. American and Israeli law enforcement officers and Homeland Security officials regularly meet in both countries to study counter-terrorism techniques and new ideas regarding intelligence gathering and threat prevention.
In December 2005, the United States and Israel signed an agreement to begin a joint effort to detect the smuggling of nuclear and other radioactive material by installing special equipment in Haifa, Israel's busiest seaport. This effort is part of a nonproliferation program of the U.S. Department of Energy's National Nuclear Security Administration that works with foreign partners to detect, deter, and interdict illicit trafficking in nuclear and other radioactive materials.
 Military bases
The United States maintains six war reserve stocks inside Israel, and maintains some $300 million in military equipment at these sites. The equipment is owned by the United States and is for use by American forces in the Middle East, but can also be transferred to Israeli use during a time of crisis. The United States is also alleged to keep fighter and bomber aircraft at these sites, and one of the bases is thought to contain a 500-bed hospital for U.S. Marines and Special Forces.
The Dimona Radar Facility is an American radar facility in the Negev desert of Israel, located near Dimona. The facility has two 400-foot radar towers designed to track ballistic missiles through space and provide ground-based missiles with the targeting data needed to intercept them. It can detect missiles up to 1,500 miles away. The facility is owned and operated by the U.S. military, and provides only second-hand intelligence to Israel. The towers of the facility are the tallest radar towers in the world, and the tallest towers in Israel