Normandy: Ocean-Going Tugboats, Mulberries and Gooseberries http://news.usni.org/2014/06/06/d-day-70-port-omaha-beach?utm_source=USNI+News%3A+Members&utm_campaign=87a22ccbe9-USNI_MEMBERS_NEWS_DAILY&utm_medium=email&utm_term=0_212f579a99-87a22ccbe9-229973641&ct=t(USNI_MEMBERS_NEWS_DAILY)&mc_cid=87a22ccbe9&mc_eid=bcdb2b77af