munitions storage and war reserve vehicles at Israeli Air Force bases, site 54 is an emergency military hospital near Tel Aviv with 500 beds, and sites 55 and 56 are ammunition depots. However, Israel is not the only country in the Middle East to host US military bases; there are American facilities in Turkey, Egypt, Jordan, Saudi Arabia (mostly withdrawn from in 2003), Oman, and the Persian Gulf states of Kuwait, Bahrain (headquarters of the United States Fifth Fleet), Qatar, and the United Arab Emirates. The Bahrain headquarters of the United States Fifth Fleet is meant to act as a watchdog and deterrent to potential Iranian aggression in the Persian Gulf region. The Israeli Mediterranean Port of Haifa hosts regular visits by navy vessels of the United States Sixth Fleet, which is headquartered in Naples, Italy. The Dimona Radar Facility is an American radar facility in the Negev desert of Israel, located near Dimona. The facility has two 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 away. The facility is owned and operated by the US 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. Intelligence relations The United States and Israel have cooperated on intelligence matters since the 1950s. Israel was behind the disclosure of Kruschev's secret speech denouncing Stalin in 1956. Throughout the Cold War, Israel provided the US with information on Soviet-built weapons systems captured from the Arabs. Israel also provides the US with much of its Middle Eastern human intelligence. The CIA became more reliant on Israeli intelligence following the Iranian Revolution and the 1983 Beirut barracks bombing. Meanwhile, the US provided Israel with satellite imagery, and in the early 1980s, the CIA reportedly began giving Israel intelligence that it denied its closest NATO allies. In particular, Israel received almost unlimited access to intelligence from the KH-11 Kennan military satellite, though Israeli access was more restricted following Operation Opera. The National Security Agency has acknowledged that it provides to Israel raw unfiltered information intercepts that include private details and messages of American citizens. American espionage against Israel Despite intense intelligence cooperation, both countries have been heavily engaged in espionage operations against one another. The United States has mainly tried