Those who remained faced another season of pursuit.
This pressure brought increasing numbers into American custody.
One important late episode involved Halleck Tustenuggee and his followers.
National Park Service research on Fort King recounts that after Worth's forces destroyed supplies needed to continue resistance, Halleck entered negotiations. American troops later captured a large portion of his group during a gathering arranged under Worth's authority. The captured group included warriors, women, and children and represented a substantial fraction of the Seminole population then believed to remain in Florida.
By 1842, the resistance had become numerically much smaller than it had been in 1835.
The question was whether Washington would spend another year attempting to capture everyone left.
Seven years had changed the meaning of success
When the war began, federal policy assumed removal meant removal.
Seminoles were expected to leave Florida and relocate west.
Resistance would be suppressed.
The territory would then be available for expanded American settlement without an independent Seminole population remaining inside it.
By 1842, most Seminoles had indeed been removed or forced west.
Estimates vary because nineteenth-century records counted people imperfectly, but several thousand had been transported to Indian Territory. Army history gives approximately 3,800, while National Park Service summaries use figures between 4,000 and 5,000 depending on categories and estimates.
The remaining population was far smaller.
Some estimates placed the number near 300.
Others placed it closer to 500 or 600.
The difference partly reflects uncertainty about groups that deliberately avoided contact.
The important fact is that a few hundred people had survived the removal campaign inside Florida.
They were difficult to find.
They occupied country the Army found extraordinarily difficult to penetrate.
Capturing them all promised another expensive round of searching.
Washington now had to decide whether the original definition of victory was still worth its price.
The financial cost had become politically difficult to justify
Precise estimates of the war's total cost vary depending on which federal expenses are included.
Contemporary and later sources commonly place the military expenditure somewhere around $20 million to $40 million in nineteenth-century dollars.
The U.S. Army's modern historical account uses roughly $30 million. A National Park Service overview gives about $20 million, while other historical accounting produced figures approaching or exceeding $30 million.
The disagreement over the exact figure does not change the scale.
This was an extraordinarily expensive campaign against a comparatively small population.
Money went into transporting troops, paying volunteers, maintaining horses, building forts, moving supplies, operating vessels, paying contractors, treating the sick, compensating militia service, and supporting removal.
Short-term volunteer forces could be particularly expensive.
A later congressional discussion comparing costs noted that volunteers often required transportation, horses, clothing, and other expenses that made them substantially more costly than equivalent numbers of Regular Army infantry.
Florida had become a machine for consuming money and manpower.
Every additional Seminole captured made complete removal more achievable in theory.
Every remaining Seminole became more expensive to find in practice.
The marginal cost was rising.
The war had also consumed a disproportionate share of the Regular Army
The United States in the 1830s did not possess the enormous standing military establishment that would exist in later centuries.
The Regular Army was small.
Committing thousands of soldiers to Florida meant those soldiers could not be easily used elsewhere.
The strain helped produce the 1838 increase in authorized Army strength.
Army historians later emphasized that the Seminole campaign depleted available Regular forces so severely that the government had to expand the establishment.
This mattered beyond Florida.
The United States had a long frontier.
It had forts to maintain elsewhere.
Relations with Native nations across the West required troops.
International tensions still existed.
The Army could not remain indefinitely concentrated in Florida merely because a few hundred people continued to avoid removal.
Strategic resources always have alternative uses.
By 1842, the War Department was increasingly willing to accept an imperfect Florida outcome in order to release troops and money for other purposes.
President John Tyler's administration inherited a war it had not started
The political leadership that made the final decision in 1842 was not the same leadership that had begun removal enforcement in 1835.
Andrew Jackson had left office.
Martin Van Buren had served a full presidential term while the war continued.
William Henry Harrison had become president and died only weeks later.
John Tyler then entered the presidency.
The war outlasted administrations, commanders, and repeated declarations that the end might be near.
This long duration mattered politically.
A new administration did not have to defend the original policy in exactly the same way as the officials who had launched it.
The practical question became more important than the symbolic one.
Could the remaining Seminoles be isolated in southern Florida without continuing full-scale war?
By 1842, the answer appeared to be yes.
On May 10, Washington authorized the change in strategy
The formal shift began before the August announcement.
A congressional document prepared from War Department records states that instructions dated May 10, 1842 communicated the President's views and directed the discontinuance of hostilities.
The instructions allowed Worth to declare the fighting ended when he considered the moment appropriate.
He was still expected to communicate with Seminoles who remained and encourage them to join those already removed west.
This distinction is important.
Washington had not suddenly decided that the entire removal policy had been mistaken or legally abandoned.
It had decided that continued war was no longer the preferred instrument for removing the final groups.
The objective had softened.
Emigration remained desired.
Compulsory military pursuit would stop.
This is why different historical sources sometimes give different dates for the end of the war.
Some Army summaries point to May 10, 1842, when Washington authorized termination of active hostilities. Other sources emphasize August 1842, when Worth formally announced that hostilities had ceased and defined the territory in which remaining Seminoles would be allowed to live.
The difference is not necessarily a contradiction.
One date represents the policy decision.
The other represents its implementation in Florida.
Worth still had to create a workable peace on the ground
Washington could send an instruction ending offensive war.
That did not mean Seminole groups automatically knew or trusted the change.
Communication was required.
Some groups were scattered.
Different leaders had different experiences with federal negotiations.
The capture of Osceola under a flag of truce had created obvious reasons for distrust.
Worth therefore needed intermediaries.
He met with representatives.
He attempted to define where the remaining Seminoles could live without creating immediate conflict with white settlement.
The surviving groups were not all present at one council, which meant any arrangement remained uncertain.
Some leaders were willing to discuss peace but not removal.
Others wanted assurance that they could remain in Florida.
The compromise gradually took shape.
The government would suspend the military effort to capture them.
They would concentrate south of a defined boundary.
White settlers would be discouraged from entering that area.
The government would continue encouraging emigration west.
This was not the ending imagined in 1835.
It was an ending shaped by what seven years of war had made possible.