Complex sentence: After the failure of his marriage, frustrated with the slow promotion process of the Army, Kearny resigned his commission in October of that year, and embarked on a trip around the world, visiting China, Ceylon, and France.
Split into simpler sentences: After the failure of his marriage, frustrated with the slow promotion process of the Army, Kearny resigned his commission in October of that year. He embarked on a trip around the world, visiting China, Ceylon, and France.