Complex sentence: Harris has logged 4400 flight hours, including over 400 combat hours, in U.S. and foreign maritime patrol and reconnaissance aircraft, and is the first officer from the U.S. Navy's P-3 maritime patrol aviation community to achieve 4-star rank.
Split into simpler sentences: Harris has logged 4400 flight hours, including over 400 combat hours, in U.S. and foreign maritime patrol and reconnaissance aircraft. He is the first officer from the U.S. Navy's P-3 maritime patrol aviation community to achieve 4-star rank.