This painting depicts the forces of British Major General Charles Cornwallis, 1st Marquess Cornwallis (1738–1805) (who was not himself present at the surrender), surrendering to French and American forces after the Siege of Yorktown (September 28 – October 19, 1781) during the American Revolutionary War. The central figures depicted are Generals Charles O'Hara and Benjamin Lincoln. The United States government commissioned Trumbull to paint patriotic paintings, including this piece, for them in 1817, paying for the piece in 1820.
The Revolutionary War: When Strategic Options Share the Same Weakness
Last updated 03:55 PM EDT • Read time: 6m
As America marks 250 years of independence and commemorates the 245th anniversary of the British surrender at Yorktown, that victory remains one of the Revolution’s clearest examples of a military success producing a decisive strategic outcome. It also offers a less obvious lesson for modern leaders thinking about war and strategy. Having several options on paper does not always mean having several independent ways forward.
Engineers face a similar problem when redundant systems that appear independent share the same vulnerability. Three backup generators may look reassuring until the same flood reaches all three. Each may work exactly as designed and still provide no real redundancy against that shared hazard. Engineers call the resulting loss of multiple systems from a shared cause a common-cause failure—a failure that can undermine the protection that redundancy is supposed to provide.
Strategy presents a similar analytical problem. Options that look separate can still depend on the same underlying condition. Simply having more options may therefore provide less flexibility than it appears.
At Yorktown, British Lieutenant General Charles Cornwallis acted on orders from General Sir Henry Clinton, the British commander in chief in North America, to establish a protected naval post in the lower Chesapeake. By early August, Cornwallis had occupied Yorktown and begun fortifying the area around its deep-water harbor. The decision tied his position closely to maritime support from New York. French control of the Chesapeake later blocked British reinforcement and naval evacuation while American and French forces closed from land. Cornwallis still had choices, though his ability to sustain the position, reinforce his army, or retreat was narrowing.
Cornwallis did not lose all his options at once. He waited for relief while meager supplies continued to reach Yorktown aboard small vessels that slipped through the French blockade. When it became clear that help would not arrive in time, Cornwallis attempted to ferry much of his army across the York River and break out overland, only to have a storm disrupt the effort. British relief did not reach Yorktown before Cornwallis surrendered on October 19.
French control of the Chesapeake did more than isolate Cornwallis. It reduced Britain’s ability to turn the campaign back in its favor. Several different British choices relied on the same maritime connection, and once it was lost there was no ready substitute.
Yorktown suggests one useful practice strategists can borrow from engineers. Counting the available options is only a starting point. Leaders also need to understand what those options share and whether a lost dependency could be replaced.
Modern U.S. joint doctrine makes assumptions part of the planning process, and recent analysis emphasizes challenging them and revising options as conditions change. That analysis also needs to look across military, diplomatic, economic, and other options for conditions several share. Coordination among agencies can bring those options together without necessarily revealing what they depend on in common. An assumption can be tested carefully within one option while the same dependency goes unrecognized across several others.
The shared condition can take many forms—access, time, a partner’s capacity, or continued political support. The problem becomes more serious when several apparently different options rely on the same condition and no ready substitute exists. Five options on a briefing slide may then amount to far fewer usable choices. If that condition fails or is denied, decision space can shrink quickly. An adversary can use the same logic offensively by looking for a shared condition whose loss would weaken several options at once. French control of the Chesapeake had that effect at Yorktown, making several of Cornwallis’s remaining choices worse at the same time.
Looking across the full set of options takes judgment. Leaders need to ask what plausible change could weaken several choices at once, and whether they would still have a way forward if it occurred.
In July 1779, two years before Yorktown, American forces encountered a different version of the problem at Penobscot Bay on the coast of present-day Maine, then part of Massachusetts. British troops had established a fortified foothold there, threatening Massachusetts’s control of the region and supporting a wider British presence in northern New England. Massachusetts responded with a large expedition built around state militia and naval forces, joined by Continental Navy ships and Marines. The British were still strengthening their fort when the Americans arrived.
American troops made progress ashore before the operation stalled. The land and naval components depended on each other to break the British defense. American ships faced British shore batteries as they tried to press farther into the harbor, while troops ashore needed the fleet to deal with the British warships supporting the position. The resulting deadlock allowed the siege to drag on.
The delay became increasingly costly because British relief was coming from New York. A squadron under Sir George Collier reached Penobscot Bay on August 13. The Americans abandoned the siege and retreated up the Penobscot River, destroying or losing most of their fleet as the expedition collapsed, marking the worst American naval defeat until Pearl Harbor. The Americans still had options during the siege, although their value diminished as the land and naval forces failed to act together before British relief changed the balance.
Penobscot offers an American example of a similar problem at a smaller scale. At Yorktown, several British choices depended heavily on maritime access that French naval power severed. The Americans at Penobscot faced a different dependency. Continued American pressure on the British position depended increasingly on the land and naval forces acting together before British relief arrived. Poor coordination was only one of the expedition’s problems, and the approaching relief force made the delay increasingly costly.
America’s 250th anniversary is a useful moment to remember that the Revolution does not divide neatly into American lessons and British mistakes. Both sides confronted choices whose value depended on conditions that could change faster than leaders could adapt. Washington had already experienced how much could turn on one condition. In December 1780, after French naval superiority failed to materialize during that year’s campaign, he wrote to Benjamin Franklin that it was “the pivot upon which everything turned.”
Modern leaders should ask what plays that role across the choices before them. The number of options on the table matters less if several become useless when the same condition is lost. Finding that pivot before circumstances change—or an adversary acts against it—is part of strategic judgment.
Henry Yep is a senior intelligence officer in the Directorate for Analysis, Office of Enterprise Analysis, at the Defense Intelligence Agency. He is a 2025 distinguished graduate of the Marine Corps War College and a 2024–2025 Strategy and Statecraft Fellow at the Center for Strategic and International Studies.
The views expressed in this article are those of the author and do not reflect the official position of the U.S. Department of War or the U.S. Government.