What was the name of the 1778 military pact between the United States and France during the American Revolution?

The 1778 military pact between the United States and France was the Treaty of Alliance.

Benjamin Franklin, Arthur Lee, and Silas Deane negotiated the agreement for the United States, while France was represented by Conrad Alexandre Gérard. The treaty was signed in Paris on February 6, 1778, alongside the Treaty of Amity and Commerce. The commercial treaty formally recognized the United States and established trade relations; the alliance provided military support.

France entered the conflict after the American victory at Saratoga demonstrated that the rebellion could succeed. French assistance included weapons, money, troops, and naval forces. French participation became decisive at Yorktown, where French soldiers and ships helped prevent a British escape or relief effort.

The alliance was defensive and included provisions about peace negotiations and territorial claims. It did not remain a permanent partnership: the United States declared neutrality during the French Revolutionary Wars, and Congress formally ended the treaty in 1798.