Complex sentence: On 3 February 1938 she became flagship of the Special Service Squadron operating along the coasts of Central and South America, training, on neutrality patrol, and as guard ship for the Panama Canal.
Split into simpler sentences: On 3 February 1938 she became flagship of the Special Service Squadron which operated along the coasts of Central and South America. Her duties included training, neutrality patrol, and guard ship for the Panama Canal.