Leaving Captain Mackey with his company to garrison the fort, Washington advanced towards the forks. But he had marched only thirteen miles when he met several friendly Indians, one of whom said:

"The French are on the march against you."

"How far away?" inquired Washington.

"A few miles only."

"In large force?"

"Eight hundred Frenchmen and four hundred Indians."

"I can hardly credit that they are coming with so large a force," replied Washington. "That is a formidable army for my small army to fight."

The Indians convinced him that it was even so, whereupon he called a council of war, when it was unanimously decided to retreat to their base of supplies. After two days of wearisome marching, on the retreat, they reached the fort at the Great Meadows. Here many of the men and horses were so exhausted and weak for the want of food that Washington decided to make a stand there. He was forced to stop there, and so he named the stockade "Fort Necessity."

The able-bodied soldiers were set to work digging a trench around the fortifications, and felling large trees to obstruct the march of the enemy upon their works. But their labors were far from being completed when, on the morning of July 3, a wounded sentinel came rushing into camp and shouting, "The enemy is upon us! The French army is here!"