Complex sentence: On 21 April 1914, a naval brigade of marines and sailors occupied Veracruz, and afterwards a total of 55 Medals of Honor were awarded for acts of heroism at Veracruz, the largest number ever granted for a single action.
Split into simpler sentences: On 21 April 1914, a naval brigade of marines and sailors occupied Veracruz. A total of 55 Medals of Honor were awarded for acts of heroism at Veracruz, the largest number ever granted for a single action.