Final answer:
The most significant danger posed to the Continental Army, as recognized by George Washington, was the grave equipment shortages and the struggle to establish uniformity and discipline amongst the troops.
Step-by-step explanation:
During the American Revolution, the Continental Army, led by George Washington, faced a variety of challenges, one of the most significant being equipment shortages. The lack of uniforms, the fact that not all soldiers had muskets or bayonets, and varied clothing based on colony origin meant there was no uniformity among the troops, which impeded their effectiveness and unit cohesion. Moreover, the difficulty of maintaining supplies such as clothing, ammunition, tents, and equipment, particularly between 1777 and 1779, significantly endangered the American effort, as echoed by the hardships experienced during the winter at Valley Forge. Financial constraints further strained resources, as the Continental Congress resisted taxing citizens to fund the war, resulting in inflation of the currency known as 'continentals' and dependence on foreign loans and domestic borrowing.