They established additional posts.
They patrolled waterways.
They searched hammocks.
They followed trails.
They destroyed fields and settlements.
They attempted negotiations.
They captured individuals and small groups.
The battlefield stopped being a place.
It became the entire southern part of the Florida peninsula.
This created another American problem.
A military force can report victory after capturing an objective.
What counted as the objective in Florida?
A Seminole camp?
The people could leave.
A field?
Another could be planted.
A canoe?
Another could be built.
A trail?
The surrounding wetlands contained alternatives.
A fort?
The Seminoles rarely needed to capture it.
The Army's success therefore had to be measured in something less visible.
How many people remained?
How much food could they obtain?
How far south had they been pushed?
How many leaders were still resisting?
How much longer would Congress finance the campaign?
The last question became increasingly important.
Disease killed more American soldiers than Seminole weapons
Florida's environment punished the Army even when no fighting occurred.
Malaria, dysentery, fevers, and other diseases spread through military camps and columns.
Army medical history estimates that almost 1,200 of approximately 1,500 Army deaths during the conflict were related to disease rather than direct combat, and more than three-quarters of military deaths in Florida resulted from illness.
The statistics from William Worth's later campaign demonstrate the scale.
Between June 1841 and February 1842, approximately 5,000 troops reportedly generated almost 16,000 cases of disease. The same man could become sick more than once, so the number of cases exceeded the number of soldiers many times over.
This meant that the environment continuously reduced effective strength.
A regiment on paper might contain hundreds of men.
A large portion could be unavailable for duty.
Medical officers became overworked.
Supplies intended for campaigning had to support sick soldiers.
Men whose enlistments expired returned home with stories about heat, insects, fever, and endless marches through water.
Disease therefore became a strategic force.
The Seminoles did not control malaria.
They benefited from an environment to which many of them were more accustomed than newly arrived American troops.
The Army could send reinforcements.
Florida could make reinforcements sick.
Summer had traditionally been the Army's enemy
For much of the war, American commanders reduced offensive activity during the hottest and wettest months.
This made medical sense.
Summer campaigning exposed troops to greater disease risk and exhausting conditions.
It also created a predictable rhythm.
If the Army reduced pressure during the summer, Seminole communities could use that period to plant crops, obtain food, repair settlements, and prepare for renewed operations.
The seasonal pause helped the resistance recover.
William Jenkins Worth eventually decided that the pattern had to be broken.
Worth took command in May 1841.
His strategy accepted that summer campaigning would damage his own troops.
He believed it could damage Seminole subsistence even more.
The Army began moving during the season when earlier commanders had often slowed operations.
American columns searched for cultivated fields.
They destroyed corn and other food.
They burned homes.
They removed stored provisions.
They seized or killed livestock.
The goal was not primarily to force one climactic battlefield engagement.
The goal was to make continued resistance physically difficult.
Army historical accounts describe Worth's change as a major turning point. By campaigning through the summer and destroying food supplies and dwellings, he prevented Seminole communities from using the season to rebuild their food base.
The method imposed severe hardship on Seminole civilians as well as fighters.
That was part of its purpose.
Worth was attacking the ability of entire communities to remain in the field.
The final American strategy targeted survival itself
Traditional battlefield strategy separates combatants from logistical support in theory.
In frontier warfare, the line could be much less clear.
A field of corn fed fighters and families.
A canoe moved people, food, ammunition, and children.
A cattle herd represented food and mobility.
A hidden settlement was both a home and a supply point.
Worth's strategy treated these resources as military targets.
The effect accumulated.
A family displaced once might relocate.
A family repeatedly displaced while food stores were destroyed faced increasingly limited options.
Some surrendered.
Some accepted removal.
Some negotiated.
Some continued moving south.
The surviving Seminoles were increasingly compressed toward a landscape that American settlers considered economically unattractive at the time.
This became one reason Washington could eventually tolerate their continued presence there.
The territory that had once seemed necessary to clear completely was redefined.
If most Seminoles had already been removed and the remaining population could be kept in the far south, perhaps the cost of pursuing the last groups exceeded the value of forcing them out immediately.
That was the strategic calculation emerging by 1842.
Worth combined destruction with negotiation
Worth's campaign was not based exclusively on military pursuit.
He also used captured or surrendered Seminoles to communicate with those still hiding.
Money, food, and other inducements were offered for emigration.
American officers repeatedly attempted to persuade leaders that remaining in Florida would become progressively harder.
The military message and the diplomatic message reinforced one another.
The Army would continue destroying resources.
Those who agreed to removal could receive assistance or payments.