Who protects us by sea? The US Navy! The navy keeps our country safe by water--and under the water too! They protect US ships and submarines when traveling. From recruit training to life at sea, take a look inside the US Navy to learn what it takes to be a sailor. Jennifer Boothroyd taught elementary school for many years. She currently helps visitors explore the outdoors at a local nature center. Jennifer enjoys spending time with her family, taking pictures, and traveling. She is a huge Disney geek and loves planning trips to Walt Disney World for her friends and family.