An estimated 30 to 40 people will operate the radar array. Support staff include security guards employed by Chenega Blackwater Solutions, which is a partnership between an Anchorage-based Native Company and the embattled private security firm that's drawn fire for its operations in Iraq.
Last year, a few community members spoke out against Juneau hosting the radar array and participating in missile testing.
But O'Reilly said Juneau should be proud to play a part of the tests.
"Part of our requirement as a government is to protect our citizens, and this is a crucial piece of equipment for our military," he said. "It's part of our obligation to support the military, as the military supports the country."