A Memorandum of Understanding (MOU) is an agreement between two parties — in this case, the governments of Israel and the United States. It is less than a treaty, more than a handshake. The first MOU was signed in 1981, recognizing “the common bonds of friendship between the United States and Israel and builds on the mutual security relationship that exists between the two nations.” The current MOU, signed in 2007, represented a 10-year commitment. The Obama Administration and the government of Israel have been negotiating a new 10-year agreement that will come into effect in 2017.
It is hard to get the nuance right in a security arrangement between a superpower and a small country, even if the small country is a first-world democracy in terms of education, income, technology, and political structure. It is harder when large sums of money are involved, and harder still when the small country is, in military terms, a “security producer,” one that provides more security to a region than it requires in assistance, but is still uniquely threatened in the world.