Final answer:
The Americans prepared by mobilizing the Minutemen, stockpiling munitions, and leveraging French support post-Battle of Saratoga to transform the Continental Army into a formidable force. Washington led strategic military campaigns and Congress funded the war efforts.
Step-by-step explanation:
The Americans prepared to fight the British by forming colonial militias, known as the Minutemen, who were ready for military action at a moment's notice. They stockpiled weapons and gunpowder, and although they began the war without a professional army, they ended up creating a strong force with the help of the French alliance after the crucial Battle of Saratoga.
The continental army, led by George Washington, strategically fought the British, targeting them at sea and on land, while also employing guerrilla tactics and strengthening their forces with the aid of Baron von Steuben's training.
Washington's strategic retreats and surprise maneuvers, including the stealth departure from an encampment that duped British forces, were key in elongating the war and exhausting British resources.
The Continental Congress supported the war effort by authorizing the creation of a continental army, borrowing money for gunpowder, and releasing paper currency to fund the military. Finally, international diplomacy played a crucial role as the alliance with France provided additional troops and support, turning the tides in the Americans' favor.