10/18/2026
⛏ So… what exactly were the “First Parallel” and “Second Parallel” at Yorktown?
If you’ve ever looked at a map of the Siege of Yorktown, you’ve probably seen the words First Parallel and Second Parallel and wondered what in the world they meant. They weren’t just two lines showing where the American and French troops stood. In the military language of the 18th century, a parallel was a fortified trench dug roughly parallel to the enemy’s defenses. It gave soldiers a protected place from which to work, move artillery, and continue pushing closer to the opposing army.
At Yorktown, the French and American forces used this method with remarkable patience. Rather than throwing thousands of men against the British fortifications, they gradually dug their way toward them. On the night of October 6, 1781, Allied troops began constructing the First Parallel, several hundred yards from the British defenses. Men worked through the darkness, digging trenches and preparing positions for artillery while the British fired upon them. Once the parallel was established, the Allies could bring their guns forward and begin pounding the British lines from a much more protected position.
But the First Parallel was only the beginning. The whole purpose of the siege was to keep moving closer, and on October 11, the Allies began digging the Second Parallel, considerably nearer to the British defenses. This brought the artillery within much more effective range and put tremendous pressure on Cornwallis and his men. There was, however, a problem - two British redoubts stood in the way. (A redoubt was a small hiding spot made of dirt or earth where soldiers could protect themselves from enemy attacks.)
Those redoubts were small but heavily defended fortifications, and they had to be taken before the Second Parallel could be completed. On the night of October 14, American and French troops attacked. American forces under Lieutenant Colonel Alexander Hamilton stormed Redoubt No. 10, while French troops attacked Redoubt No. 9. Both positions were captured, allowing the Allies to finish the Second Parallel and move their artillery even closer.
That is what makes the parallels at Yorktown so fascinating. The siege was not simply a matter of soldiers charging across an open field. It was a carefully planned process of digging, building, moving artillery, and inching closer to the British defenses. The First Parallel gave the Allies a protected position from which to begin their bombardment. The Second Parallel brought them close enough to make the British position increasingly difficult to defend.
By October 17, Cornwallis was asking for a ceasefire. Two days later, on October 19, 1781, the British army formally surrendered.
So when you see those two lines on a Yorktown map, remember what they represent. They mark the ground that French and American soldiers literally dug their way across in the darkness, one trench at a time, while the British defenses grew steadily more difficult to hold.
And there is something rather remarkable about that. The Revolution was fought with muskets, cannon, ships, and bayonets - but at Yorktown, it was also fought with shovels, engineering, and an extraordinary amount of hard, exhausting work.
Today, the earthworks and archaeological remains at Yorktown help us understand just how much of that story is still written into the landscape.
📷: https://revolutionarywar.us/