19
Jun
1778
Continental Army Departs Valley Forge
Monmouth, NJ· day date
The Story
# Continental Army Departs Valley Forge
On June 19, 1778, the Continental Army broke camp at Valley Forge, Pennsylvania, and began what would become one of the most consequential marches of the American Revolutionary War. What had entered that winter encampment as a demoralized, underfed, and poorly trained collection of soldiers emerged as a disciplined fighting force ready to challenge the British army on open ground. The departure from Valley Forge and the pursuit across New Jersey that followed represented a turning point not just in military capability but in the psychological confidence of the American cause.
To understand the significance of this moment, one must consider what the Continental Army had endured in the months prior. The winter of 1777–1778 at Valley Forge was marked by extraordinary hardship. Soldiers suffered from inadequate clothing, scarce food supplies, and rampant disease. Thousands fell ill, and many died without ever seeing battle. Yet it was during this bleak period that one of the most important transformations in American military history took place, largely through the efforts of Friedrich Wilhelm von Steuben, a Prussian military officer who arrived at Valley Forge in February 1778 and was appointed Inspector General of the Continental Army. Steuben implemented a rigorous and systematic training program that taught American soldiers the fundamentals of European military drill and discipline. He personally drilled a model company of soldiers, who then spread his techniques throughout the entire army. Under his guidance, troops learned to march in proper formation, transition efficiently from marching columns into battle lines, execute coordinated musket volleys, and maintain unit cohesion even under the terrifying pressure of enemy fire. These were not merely ceremonial skills but practical battlefield capabilities that would soon be tested under real combat conditions.
The strategic context for the army's departure was equally important. The broader war had shifted dramatically by the spring of 1778. France had formally entered the conflict as an American ally, a development that fundamentally altered British strategic calculations. Sir Henry Clinton, who had recently assumed command as British Commander-in-Chief in North America, received orders to consolidate his forces. He decided to abandon Philadelphia, which the British had occupied since September 1777, and march his army overland across New Jersey to New York City. This withdrawal presented General George Washington with a rare opportunity. Rather than simply watching the British leave, Washington chose to pursue Clinton's army and strike it while it was strung out and vulnerable on the march.
Washington divided his Continental Army into two wings and led them eastward through the New Jersey countryside, shadowing Clinton's long, slow-moving column. The British force, burdened by an enormous baggage train stretching some twelve miles, made tempting prey. Over approximately nine days, the Americans covered roughly sixty miles, carefully maneuvering to find the right moment and place to attack. The heat was oppressive, and both armies suffered under the summer sun, but the Americans pressed forward with a sense of purpose and cohesion that would have been unimaginable just months earlier.
The pursuit culminated on June 28, 1778, at the Battle of Monmouth Court House in New Jersey, where the two armies clashed in one of the longest engagements of the war. The fighting tested every element of Steuben's training, and the Continental Army performed with a discipline and resilience that stunned British commanders. American troops held their ground, executed battlefield maneuvers under fire, and fought the British regulars to a standstill — something few would have predicted after the defeats and despair of the preceding year.
The march from Valley Forge matters in the broader Revolutionary War story because it demonstrated that the Continental Army had evolved from a loosely organized militia-style force into a professional army capable of meeting one of the world's premier military powers on roughly equal terms. The training, endurance, and strategic ambition displayed during this pursuit across New Jersey signaled that the American war effort had entered a new and more formidable phase, one that would ultimately carry the struggle toward independence.
People Involved
Sir Henry Clinton
British Commander-in-Chief
British commander-in-chief who led the march from Philadelphia to New York in June 1778. Clinton's army fought the Battle of Monmouth as a rear-guard action and continued to New York after the engagement.
Friedrich Wilhelm von Steuben
Continental Army Inspector General
Prussian military officer who trained the Continental Army at Valley Forge in the winter of 1777-78. Steuben's drill program transformed the army, and Monmouth was the first major battle where that training was tested under fire.