Philadelphia played a key role in the history of spying during the American Revolution because it was the main location for the Continental Congress, was occupied by the British Command, and then returned to Continental control. Philadelphia became a center of spies for the British and Americans--as well as double agents. An important contribution to Revolutionary War history, Spies in the Continental Capital: Espionage Across Pennsylvania During the American Revolution demonstrates that intelligence operations on both sides emanating from Pennsylvania were vast, well-designed, and critical to understanding the course and outcome of the war.

From imposters and hidden compartments to secret handshakes and coded letter, here is a thoroughly entertaining account of the role of spycraft during the American Revolution.

NEW YORK TIMES BESTSELLER • Turn: Washington’s Spies, now an original series on AMC Based on remarkable new research, acclaimed historian Alexander Rose brings to life the true story of the spy ring that helped America win the Revolutionary War. For the first time, Rose takes us beyond the battlefront and deep into the shadowy underworld of double agents and triple crosses, covert operations and code breaking, and unmasks the courageous, flawed men who inhabited this wilderness of mirrors—including the spymaster at the heart of it all. In the summer of 1778, with the war poised to turn in his favor, General George Washington desperately needed to know where the British would strike next. To that end, he unleashed his secret weapon: an unlikely ring of spies in New York charged with discovering the enemy’s battle plans and military strategy. Washington’s small band included a young Quaker torn between political principle and family loyalty, a swashbuckling sailor addicted to the perils of espionage, a hard-drinking barkeep, a Yale-educated cavalryman and friend of the doomed Nathan Hale, and a peaceful, sickly farmer who begged Washington to let him retire but who always came through in the end. Personally guiding these imperfect everyday heroes was Washington himself. In an era when officers were gentlemen, and gentlemen didn’ t spy, he possessed an extraordinary talent for deception—and proved an adept spymaster. The men he mentored were dubbed the Culper Ring. The British secret service tried to hunt them down, but they escaped by the closest of shaves thanks to their ciphers, dead drops, and invisible ink. Rose’s thrilling narrative tells the unknown story of the Revolution–the murderous intelligence war, gunrunning and kidnapping, defectors and executioners—that has never appeared in the history books. But Washington’s Spies is also a spirited, touching account of friendship and trust, fear and betrayal, amid the dark and silent world of the spy.

Dr. Benjamin Church, Jr. (1734-1778) was a respected medical man and civic leader in colonial Boston who was accused of being an agent for the British in the 1770s, providing compromising intelligence about the plans of the provincial leadership in Massachusetts as well as important information from the meetings of the First Continental Congress in Philadelphia. In Dr. Benjamin Church, Spy: A Case of Espionage on the Eve of the American Revolution, noted authority John A. Nagy has scoured original documents to establish the best case against Church, identifying previously unacknowledged correspondence and reports as containing references to the doctor and his activities, and noting an incriminating letter in the possession of the Library of Congress that is a coded communication composed by Church to his British contact. Nagy shows that at the cusp of the revolution, when the possibility--let alone the outcome--of an American colonial rebellion was far from assured, Church sought to align himself with the side he thought would emerge victorious--the British crown--and thus line his pockets with money that he desperately needed. A fascinating investigation into a centuries-old intrigue, this well-researched volume is an important contribution to American Revolution scholarship.

"Using George Washington's diary as the primary source, Nagy tells the story of [his] experiences during the French and Indian War and his first steps in the field of espionage. Despite what many believe, Washington did not come to the American Revolution completely unskilled in this area of warfare. Espionage was a skill he honed during the French and Indian War and upon which he heavily depended during the Revolutionary War. He used espionage to level the playing field and then exploited it on to final victory"--Amazon.com.

How General Washington Avoided the Peril From Within His Own Forces "It gives me great pain to be obliged to solicit the attention of the honorable Congress to the state of the army...the greater part of the army is in a state not far from mutiny...I know not to whom to impute this failure, but I am of the opinion, if the evil is not immediately remedied and more punctuality observed in future, the army must absolutely break up."--George Washington, September 1775 Mutiny has always been a threat to the integrity of armies, particularly under trying circumstances, and since Concord and Lexington, mutiny had been the Continental Army's constant traveling companion. It was not because the soldiers lacked resolve to overturn British rule or had a lack of faith in their commanders. It was the scarcity of food--during winter months it was not uncommon for soldiers to subsist on a soup of melted snow, a few peas, and a scrap of fat--money, clothing, and proper shelter, that forced soldiers to desert or organize resistance. Mutiny was not a new concept for George Washington. During his service in the French and Indian War he had tried men under his command for the offense and he knew that disaffection and lack of morale in an army was a greater danger than an armed enemy. In Rebellion in the Ranks: Mutinies of the American Revolution, John A. Nagy provides one of the most original and valuable contributions to American Revolutionary War history in recent times. Mining previously ignored British and American primary source documents and reexamining other period writings, Nagy has corrected misconceptions about known events, such as the Pennsylvania Line Mutiny, while identifying for the first time previously unknown mutinies. Covering both the army and the navy, Nagy relates American officers' constant struggle to keep up the morale of their troops, while highlighting British efforts to exploit this potentially fatal flaw.

Who were the three men the Soviet and American superpowers exchanged on Berlin's Glienicke Bridge on February 10, 1962, in the first and most legendary prisoner exhange between East and West? Bridge of Spies vividly traces the journeys of these men, whose fate defines the complex conflicts that characterized the most dangerous years of the Cold War. Bridge of Spies is a true story of three men — a Soviet Spy who was a master of disguise; Gary Powers, an American who was captured when his spy plane was shot down by the Russians; and Frederic Pryor, a young American doctor mistakenly identified as a spy and captured by the Soviets. The men in this three-way political swap had been drawn into the nadir of the Cold War by duty and curiosity, and the same tragicomedy of errors that induced Khrushchev to send missiles to Castro. Two of them — the spy and the pilot — were the original seekers of weapons of mass destruction. The third was an intellectual, in over his head. They were rescued against daunting odds by fate and by their families, and then all but forgotten. Even the U2 spy-plane pilot Powers is remembered now chiefly for the way he was vilified in the U.S. on his return. Yet the fates of those men exemplified the pathological mistrust that fueled the arms race for the next 30 years. This is their story.

Spies! Loyalists! Tories! Conspiracy! Strange messages? Codes in invisible ink? The American Revolution was first and foremost a civil war that tore at the very fabric of families as well as society. Patriots were determined to separate from England; while Loyalists were just as determined to defeat what they saw as a rebellion. Many do not know that during several critical periods the war was almost fatally undermined by English sympathizers or in some cases opportunistic Patriots. Patriots and Spies in Revolutionary New York is a compilation of twelve stories regarding important moments in New York State's history during the American Revolution.

This major addition to the history of the Civil War is a “fast-paced, fact-rich account” (The Wall Street Journal) offering a detailed look at President Abraham Lincoln’s use of clandestine services and the secret battles waged by Union spies and agents to save the nation—filled with espionage, sabotage, and intrigue. Veteran CIA correspondent Douglas Waller delivers a riveting account of the heroes and misfits who carried out a shadow war of espionage and covert operations behind the Confederate battlefields. Lincoln’s Spies follows four agents from the North—three men and one woman—who informed Lincoln’s generals on the enemy positions for crucial battles and busted up clandestine Rebel networks. Famed detective Allan Pinkerton mounted a successful covert operation to slip Lincoln through Baltimore before his inauguration after he learns of an assassination attempt from his agents working undercover as Confederate soldiers. But he proved less than competent as General George McClellan’s spymaster, delivering faulty intelligence reports that overestimated Confederate strength. George Sharpe, an erudite New York lawyer, succeeded Pinkerton as spymaster for the Union’s Army of the Potomac. Sharpe deployed secret agents throughout the South, planted misinformation with Robert E. Lee’s army, and outpaced anything the enemy could field. Elizabeth Van Lew, a Virginia heiress who hated slavery and disapproved of secession, was one of Sharpe’s most successful agents. She ran a Union spy ring in Richmond out of her mansion with dozens of agents feeding her military and political secrets that she funneled to General Ulysses S. Grant as his army closed in on the Confederate capital. Van Lew became one of the unsung heroes of history. Lafayette Baker was a handsome Union officer with a controversial past, whose agents clashed with Pinkerton’s operatives. He assembled a retinue of disreputable spies, thieves, and prostitutes to root out traitors in Washington, DC. But he failed at his most important mission: uncovering the threat to Lincoln from John Wilkes Booth and his gang. Behind these operatives was Abraham Lincoln, one of our greatest presidents, who was an avid consumer of intelligence and a ruthless aficionado of clandestine warfare, willing to take whatever chances necessary to win the war. Lincoln’s Spies is a “meticulous chronicle of all facets of Lincoln’s war effort” (Kirkus Reviews) and an excellent choice for those wanting “a cracking good tale” (Publishers Weekly) of espionage in the Civil War.