The Pentagon has declassified a document that was once labeled “top-secret,” which goes into sophisticated detail about Israel’s nuclear weapons program. The document was released quietly just prior to Israeli Prime Minister Benjamin Netanyahu’s March 3 speech to a joint session of Congress.

Israel has never officially confirmed or denied the existence of a nuclear weapon’s program within its borders.

The Pentagon declassified sections covering Israel’s nuclear program, but “kept sections on Italy, France, West Germany and other NATO countries classified, with those sections blocked out in the document,” Israel National News reported.

The 386-page top-secret memo, titled, “Critical Technological Assessment in Israel and NATO Nations,” goes into great detail about how Israel turned into a nuclear power in the 1970s and 80s.

“As far as nuclear technology is concerned the Israelis are roughly where the U.S. was in the fission weapon field in about 1955 to 1960,” the report assesses.

The report was written by the Institute for Defense Analysis in 1987, which was federally funded and contracted by the Pentagon.

Israel is “developing the kind of codes which will enable them to make hydrogen bombs. That is, codes which detail fission and fusion processes on a microscopic and macroscopic level,” the report states.

The report commends that the Israelis found “ingeniously clever” solutions to solve its problems in advancing the nuclear program, largely due to the “ingenious Israeli inventions” at a “key research and development laboratory in Israel.”

The Pentagon declassified the document after Grant Smith, an activist who heads a radical anti-Israel group, filed a Freedom of Information Act request, according to reports.

Smith’s Institute for Research: Middle Eastern Policy organizes an anti-Israel conference each year in Washington, D.C. Last year, the conference featured speakers from anti-Semitic and pro-Islamist publications. During the Q & A session, a speaker openly called for education about the supposed “Zionist-Nazi collaboration” during the Holocaust, while another endorsed the possibility that “Israel had a hand in 9/11.”