Embark on an exploration of the indispensable role played by Maryland troops in the American Revolution's southern theater. As the conflict shifted focus to the Carolinas, delve into how the Maryland Line became the cornerstone of the American Army, particularly under Nathaniel Greene's command. Investigate their pivotal actions and engagements in the Southern campaign, and consider the enduring belief that without the Marylanders, the outcome of the war might have been vastly different.