 USS Constitution, America's oldest commission warship, recently welcomed its 74th commanding officer during an onboard ceremony. Constitution is currently in dry dock undergoing a restoration period that is expected to finish in 2017. Navy Week Detroit wrapped up this past weekend. Sailors participated in community relations projects, including helping build homes for habitat for humanity. Navy Weeks are designed to educate Americans on the importance of naval service and help them understand the investment they make in their Navy. Defense Secretary Ash Carter is scheduled to host a live, worldwide troop talk September 1st at 9 a.m. Eastern Time. SecDef will take questions from across the globe via social media. Post your questions via Facebook and Twitter using hashtag AskSecDef or email your questions to AskSecDef at mail.mil. Watch live on Defense.gov. For these stories and more, visit navy.mil.