BOSTON - U.S. Coast Guard Seaman Dan Middleton fires a cannon to render honors to Castle Island aboard the Coast Guard Cutter Eagle July 4, 2012. The cannons fire blank rounds and are used to render honors to other ships and historical landmarks while underway. U.S. Coast Guard photo by Petty Officer 2nd Class Rob Simpson.
<dl><dd>Unit: U.S. Coast Guard District 1</dd>
<dd>DVIDS Tags: CGVI; DVIDS Bulk Import</dd></dl>
Petty Officer 2nd Class Robert Simpson
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