What event involved 103 Marines and 400 sailors in an attempt to block British troops in August 1814?

The event that involved 103 Marines and 400 sailors in an attempt to block British troops in August 1814 was the Battle of Bladensburg. This engagement took place during the War of 1812, specifically when British forces captured Washington, D.C. The American defenders, consisting of a mix of regular military personnel and militia, faced a British advance and attempted to slow down their progress at Bladensburg. The Marines and sailors played a crucial role in this defense, although they ultimately faced overwhelming numbers and were forced to retreat, allowing British forces to continue their march into the capital.

In the context of the War of 1812, the Battle of Bladensburg is significant as it highlighted the challenges faced by American forces, particularly in terms of organization and preparedness. The involvement of Marines and sailors in this battle exemplifies their early role in American military history, setting the stage for future engagements.