Complex sentence: As rumors of war spread, and U.S. involvement appeared more imminent, the 65th Infantry was ordered to intensify its maneuvers, many of which were carried out at Punta Salinas near the town of Salinas in Puerto Rico.
Split into simpler sentences: As rumors of war spread, and U.S. involvement appeared more imminent, the 65th Infantry was ordered to intensify its maneuvers. Many of these were carried out at Punta Salinas near the town of Salinas in Puerto Rico.