Complex sentence: In TU 76.42.1, she conducted exercises off Kangmung; then, on 15 October, arrived off Kojo to provide shore bombardment support for the amphibious feint staged there on that date.
Split into simpler sentences: In TU 76.42.1, she conducted exercises off Kangmung. On 15 October, she arrived off Kojo to provide shore bombardment support for the amphibious feint staged there on that date.