Two months before Hamas attacked Israel, the Pentagon awarded a multimillion-dollar contract to build U.S. troop facilities for a secret base it maintains deep within Israel’s Negev desert, just 20 miles from Gaza. Code-named “Site 512,” the longstanding U.S. base is a radar facility that monitors the skies for missile attacks on Israel.

On October 7, however, when thousands of Hamas rockets were launched, Site 512 saw nothing — because it is focused on Iran, more than 700 miles away.

The U.S. Army is quietly moving ahead with construction at Site 512, a classified base perched atop Mt. Har Qeren in the Negev, to include what government records describe as a “life support facility”: military speak for barracks-like structures for personnel.

Though President Joe Biden and the White House insist that there are no plans to send U.S. troops to Israel amid its war on Hamas, a secret U.S. military presence in Israel already exists. And the government contracts and budget documents show it is evidently growing.