 Complete the following phrase:  The ships then began a peacetime training routine off the east coast of the United States and the Caribbean, including gunnery training off the Virginia Capes, training cruises in the Atlantic, and winter exercises in Cuban waters. In late 1909, all six ships crossed the Atlantic to visit British and French ports. Louisiana and Kansas made another trip to Europe in early 1911. As political unrest began to erupt in several Central American countries in the 1910s, the ships became increasingly active in the region. All six ships became involved in the Mexican Revolution, including the 