Throughline

The Deadliest Ally | America in Pursuit

10 min
Jan 20, 20263 months ago
Listen to Episode
Summary

This episode explores how mosquitoes, specifically the Anopheles species carrying malaria, played a decisive role in the American Revolutionary War. General Cornwallis's British forces, lacking immunity to colonial malaria, were decimated by disease during their Southern campaign, ultimately contributing to their defeat at Yorktown and American independence.

Insights
  • Disease and environmental factors can be as decisive in warfare as military strategy and tactics
  • Troop seasoning (acquired immunity) to endemic diseases provides significant tactical advantages in regional conflicts
  • Historical outcomes attributed to human decision-making often involve overlooked biological and environmental variables
  • Mosquitoes remain humanity's deadliest predator across history and continue to shape geopolitical outcomes
  • Migration and movement of populations inherently spreads disease vectors globally, a pattern unchanged for centuries
Trends
Biological and environmental factors as overlooked determinants of historical and geopolitical outcomesDisease vectors as strategic vulnerabilities in military campaigns and force deploymentAcquired immunity and population health as competitive advantages in conflict scenariosClimate and geography as primary drivers of disease prevalence and military effectivenessMosquito-borne diseases as persistent global health threats despite technological advancementHistorical revisionism incorporating biological and ecological factors into traditional narrativesDisease as inevitable consequence of human migration, trade, and international movement
Topics
American Revolutionary War - Southern Campaign StrategyMalaria and Disease in Military HistoryGeneral Cornwallis's Yorktown CampaignAnopheles Mosquito and Malaria TransmissionTroop Seasoning and Acquired ImmunitySiege of Yorktown 1781British Military Strategy in Southern ColoniesEnvironmental Factors in WarfareColonial Disease EpidemiologyMosquito-Borne Disease HistoryTidewater Virginia Marshlands and DiseaseContinental Army vs British ArmyGeorge Washington's Military StrategyDisease as Weapon in ConflictHistorical Impact of Biological Factors
People
Dr. Tim Weingard
History professor at Colorado Mason University and author of 'The Mosquito: A Human History of Our Deadliest Predator'
General Charles Cornwallis
Second-in-command of British Southern campaign; his army was decimated by malaria during the Revolutionary War
George Washington
Commander of Continental Army; benefited from his troops' seasoning to colonial malaria versus British forces
Ramteen Arablui
Host of America in Pursuit series from Throughline and NPR
Quotes
"It's still the animal that kills more human beings on the planet than any other animal to this day, and that's including other humans."
Dr. Tim WeingardEarly in episode
"We like to think we get to make our own history that we did this as human beings, and that's not necessarily the case."
Dr. Tim WeingardMid-episode
"With a third of my army sick and wounded, which I was obliged to carry in wagons or on horseback, the remainder without shoes and worn down with fatigue, I thought it was time to look for some place of rest and refitment."
General Charles CornwallisHistorical correspondence
"Our numbers had been diminished by the enemy's fire, but particularly by sickness."
General Charles CornwallisSurrender correspondence
"So in a way, Dianofli's mosquito-defounding mother of the United States, and she deserves to have her nice proboscis face tucked in between Washington and Jefferson on Mount Rushmore."
Dr. Tim WeingardEpisode conclusion
Full Transcript
This message comes from Intuit TurboTax. With TurboTax Expert Full Service, match with a dedicated expert who will do your taxes for you from start to finish getting you every dollar you deserve. It's that easy. Visit TurboTax.com to match with an expert today. This is America in Pursuit, a limited run series from Thulein and NPR. I'm Ramteen Arablui. Each week we bring you stories about life, liberty, and the pursuit of happiness in America that began 250 years ago this year when those rights, unalienable rights, were laid out in the Declaration of Independence. But Americans had to fight for them, beginning of course with an all-out revolutionary war that lasted years. So for our first episode, we're going to go back into the archives to bring you a story from that revolutionary fight which you probably know the basics of. People were mad about taxes and were tired of answering to a king. The Boston Tea Party broke out, George Washington and his crew took up arms and defeated the Imperial British Army with unconventional tactics. But there's a big, or should I say small, part of this story that's rarely mentioned. Mosquitoes. It's still the animal that kills more human beings on the planet than any other animal to this day, and that's including other humans. That's Dr. Tim Weingard. I'm a history professor at Colorado Mason University, also the head coach of the hockey team being Canadian, and I wrote the book, The Mosquito, A Human History of Our Deadliest Predator. The specific mosquito we're talking about today is known as the Anapheles, a species of mosquito that thrives in marshes and swamps, and is known for spreading malaria, a deadly disease that has changed the course of history in all kinds of ways. We like to think we get to make our own history that we did this as human beings, and that's not necessarily the case. We head to the battlefield with the Anapheles Mosquito when we come back. This message comes from Whole Foods Market. Head to Whole Foods Market for savings on zesty flavors. It's the Cocina Latina event with yellow sales signs throughout the store. Check out the meat department for marinated skirt steak with no antibiotics ever, and explore delicious weeknight shortcuts with a variety of 365 brand simmer sauces, rice, and beans at wallet happy prices. Live in things up in produce with fresh salsa and guacamole. Save during the Cocina Latina event at Whole Foods Market. This message comes from NPR sponsor Focus Features. On March 27th, Focus Features presents the AI Dock or How I Became an Apocalypse, an explosive new motion picture event being called the most urgent movie of our time. The AI Dock or How I Became an Apocalypse rated PG-13 only in theaters March 27th. This message comes from Intuit TurboTax. With TurboTax Expert Full Service, match with a dedicated expert who will do your taxes for you from start to finish getting you every dollar you deserve. It's that easy. Visit TurboTax.com to match with an expert today. It's 1778, three years into the American Revolutionary War. The first half of the war was fought almost entirely in the north. George Washington and the Continental Army were having mixed success and spent a lot of energy running from the British Army, trying to buy more time. The British are very upset that General Washington won't essentially commit to a decisive battle to end the war. And Washington knows he can't do this because he doesn't have anything if he commits to a decisive battle and loses the revolution's over. But as long as he can keep an army, however ill-supplied and under-equipped in the field, the British have to defeat and chase this army. All the while, he's desperately waiting for help to come. He waits for his political lords, essentially, in the Continental Congress, to get some supplies, get some allies, get some weapons, and hopefully get France on board. This is essentially playing cat and mouse, and it frustrates the British. So they changed their strategy. The British concentrated their forces in the southern colonies of Georgia, South Carolina, North Carolina, and Virginia. Second in command of this campaign was General Charles Cornwallis, who landed in Charleston with 9,000 British soldiers. And these soldiers come primarily from Northern England and Scotland, these British soldiers. So there was malaria in England, but these soldiers specifically are recruited from Northern England and Scotland, away from the malarial fennelins of England. So they're not what is called seasoned. What's seasoning is essentially the more you suffer, the less you suffer. Now, I don't suggest this as an inoculation strategy, but generally speaking, the more you can track malaria, the less severe the symptoms are, and the less likelihood of dying. So the American soldiers have been seasoned to their colonial malaria. They've had malaria, they've been seasoned to it. Where these British soldiers come over, they haven't been seasoned to their own English malaria, let alone colonial stew of malaria. And this new set of circumstances in the South forced Cornwallis to adopt some unusual tactics. If you look at his campaign in the South in 1780, 1781, he is zigzagging all over the place. It is one of the strangest marches you've ever seen on a map. And so why is Cornwallis doing this? Is he running away from the Americans? Is he chasing the Americans? No, he's trying to find a healthy spot for his troops. With a third of my army sick and wounded, which I was obliged to carry in wagons or on horseback, the remainder without shoes and worn down with fatigue, I thought it was time to look for some place of rest and refitment. And he says this repeatedly in his correspondences. He says that malaria is ruining my army. And he's asking British loyalists in the Southern colonies where there's a healthy spot. And because they're seasoned, they say, oh, just go that way. And then he gets there and his troops are cut to pieces by malaria again. I am now employed in disposing of the sick and wounded and in procuring supplies of all kinds to put the troops into a proper state to take the field. I am, likewise, impatiently looking out for the expected reinforcement from Europe to enable me either to act or offensively, or even to maintain myself in the upper parts of the country. Rarer alone, I can hope to reserve the troops from the fatal sickness which so nearly ruined the army last autumn. April 10th, 1781. As Cornwallis was running around looking for a safe, mosquito-free spot for his troops, he got an order from his superiors to retreat and fortify at the port of Yorktown in Virginia. Yorktown is a little hamlet situated in the tidewater estuaries between the James and York rivers. Essentially, it's rice paddies. It's marshland. So he holds up in Yorktown, French Navy comes, or eventually joined by General Washington and the Americans, and they ensnare the British in Yorktown. This is in August, which is prime mosquito time in prime mosquito country in these marshlands surrounding Yorktown. His army was decimated, and in October, General Cornwallis surrendered. I have the mortification to inform your excellency that I have been forced to give up the post and to surrender the troops under my command. The troops being much weakened by sickness, as well as by the fire of the besiegers. In his correspondences, Cornwallis leased some of the blame for his surrender on malaria. Our numbers had been diminished by the enemy's fire, but particularly by sickness. He's like, I don't have anybody who can even stand up to fight. He only has 35% of his troops, roughly, who are able to even stand up. Our force diminished daily by sickness. To little more than 3200 rank and file fit for duty. The rest are either sick, dead, or dying of malaria. The siege of Yorktown was the final battle in the war between the colonies and Great Britain, opening the path for the formation of the United States. So in a way, Dianofli's mosquito-defounding mother of the United States, and she deserves to have her nice proboscis face tucked in between Washington and Jefferson on Mount Rushmore. Our founding mother, the mosquito, looms large over the history of humanity. And as Tim told us, her reign is not limited to our past. She may completely transform our future. Human beings are crisscrossing the planet for trade, travel, business at record rates, to record numbers of destinations, in record numbers everywhere. Disease is a constant baggage to human migration. Whether that be war, trade, travel, it doesn't matter. It's a universal creature, and has been forever essentially. Her reach and her historical impact and influence kind of cross both time and space. Time is kind of irrelevant to her reach, because at every stage, the mosquito and these pathogens have essentially been able to circumvent our frontline weapons to continue what they're pre-wired to do, and that simply reproduce. So we are constantly trying new and innovative techniques to break this eternal stalemate that we've had with our deadliest enemy and deadliest predator. That's it for this week's episode of America in Pursuit, a special series from ThruLine and NPR. If you want to learn more about the role mosquitoes have played in shaping history, check out ThruLine's full-length episode called Buzzkill. And make sure to join us next Tuesday when the American Revolutionaries try to figure out how to build a new nation and a new government, relying a lot on something you probably wouldn't expect, the post office. It was the nervous system of the Republic. That's next time. Don't miss it. This message comes from Mint Mobile.