Israel under this heading shall, as agreed by the United States and Israel, be available for advanced weapons systems, of which not less than $815,300,000 shall be available for the procurement in Israel of defense articles and defense services, including research and development: Provided further , That none of the funds made available under this heading shall be made available to support or continue any program initially funded under the authority of section 1206 of the National Defense Authorization Act for Fiscal Year 2006 ( Public Law 109–163