Pollard claimed that he provided only information that was vital to Israeli security, and that it was being withheld by the Pentagon, in violation of a 1983 Memorandum of Understanding between the two countries. The Memorandum of Understanding was an agreement between the United States and Israel regarding the sharing of vital security intelligence. According to Pollard, this included data on Soviet arms shipments to Syria, Iraqi and Syrian chemical weapons, the Pakistani atomic bomb project, and Libyan air defense systems. According to the declassified CIA 1987 damage assessment of the Pollard case, under the heading "What the Israelis Did Not Ask For", the assessment notes that the Israelis "never expressed interest in U.S. military activities, plans, capabilities, or equipment". Pollard's defense claimed that Israel had the legal rights to the information that Pollard passed to Israel based upon the 1983 Memorandum of understanding and the United States was breaching that Memorandum.