U.S. Air Force Operation Deep Freeze (ODF) crew members from the 446th and 62nd Airlift Wings receive a briefing Sept. 15, 2021 at Joint Base Lewis-McChord, Washington, prior to departure. The ODF main season runs annually, from August through July. This timeframe allows research teams and partnered entities the safest and most efficient method of accomplishing their joint goals. (U.S. Air Force photo by Mr. Edzel L. Butac)
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EF24-105mm f/4L IS USM
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