Führer Directive No. 16

Führer Directive No. 16 was a pivotal military order issued by Adolf Hitler on 16 July 1940, following the decisive German victory in the Battle of France. The directive, formally titled "On Preparations for a Landing Operation against England," commanded the Wehrmacht to begin immediate planning for a full-scale amphibious and airborne invasion of the United Kingdom, codenamed Operation Sea Lion. It represented the Third Reich's strategic shift to force a conclusion to the war with Winston Churchill's government after the Dunkirk evacuation and the rejection of Hitler's peace offer by the British Empire.

Background and Context

The directive was formulated in the immediate aftermath of the Armistice of 22 June 1940, which cemented the German conquest of France and the Low Countries. With Western Europe under his control, Hitler initially anticipated that the United Kingdom, now isolated, would seek a negotiated peace, an expectation communicated through diplomatic channels like those in Sweden and the Vatican. However, the resolve of the new British Prime Minister, Winston Churchill, and his war cabinet, solidified during the Battle of Dunkirk and subsequent speeches to the House of Commons, made such a settlement impossible. The Luftwaffe had already begun probing attacks, but the failure to achieve air supremacy or a political collapse necessitated a more direct military plan. The directive was thus born from the strategic necessity to defeat Great Britain militarily, as a prerequisite for Hitler's long-term ambitions against the Soviet Union, as outlined in discussions preceding Operation Barbarossa.

Content and Key Provisions

The text of the directive was unequivocal in its intent, opening with the declaration, "Since England, in spite of her hopeless military situation, shows no signs of being ready to come to an understanding, I have decided to prepare a landing operation against England." It assigned overarching responsibility for the planning to the Oberkommando der Wehrmacht (OKW), specifically the operations staff under Wilhelm Keitel and Alfred Jodl. Key provisions included the requirement for the Luftwaffe, under Hermann Göring, to eliminate the Royal Air Force and establish air dominance over the English Channel and southern England. Simultaneously, the Kriegsmarine, led by Grand Admiral Erich Raeder, was tasked with clearing the invasion routes of Royal Navy threats and laying extensive minefields. The directive stipulated that the invasion force, primarily drawn from the Heer, would land on a broad front between Ramsgate and the Isle of Wight, with preparations to be complete by mid-August.

Planning and Preparations for Operation Sea Lion

Following the directive, the Oberkommando des Heeres (OKH), Oberkommando der Marine (OKM), and Oberkommando der Luftwaffe (OKL) began intense but often contentious planning. The Kriegsmarine, severely weakened after the Norwegian campaign and the loss of major units like the *Bismarck*, argued for a narrow front near Dover, while the Army insisted on the broad front outlined by Hitler. Massive logistical efforts commenced, including the assembly of an invasion fleet of converted Rhine barges and transports at ports from Rotterdam to Le Havre. The Luftwaffe initiated what would become the Battle of Britain, targeting RAF Fighter Command airfields and infrastructure. Specialized units like the Brandenburgers trained for sabotage missions, and plans were drafted for the military administration of occupied Britain, with figures like Franz Halder and Walther von Brauchitsch deeply involved. The planned landing areas included beaches near Folkestone, Brighton, and Portsmouth.

Impact and Consequences

The immediate impact of Führer Directive No. 16 was the escalation of the Battle of Britain into a decisive campaign for air superiority. The Luftwaffe's failure to crush the RAF, particularly during the critical phases targeting RAF Biggin Hill and other sector stations, proved fatal to the invasion's feasibility. The directive also forced a massive diversion of German resources to the Channel Coast, including the deployment of long-range artillery like the K5 railway gun at sites like Cap Gris-Nez. It cemented the United Kingdom's status as an active belligerent, leading to increased support from the British Commonwealth and laying the groundwork for the future Lend-Lease agreement with the United States. Furthermore, the planning tied down significant German forces that could have been deployed elsewhere, such as in the ongoing Siege of Malta or the early stages of the North African campaign.

Cancellation and Legacy

Operation Sea Lion was indefinitely postponed on 17 September 1940, following the Luftwaffe's failure to win the Battle of Britain Day and heavy losses during the The Blitz. The formal cancellation of the invasion preparations did not occur until a Führer Directive in early 1942, after the launch of Operation Barbarossa had irrevocably shifted the Third Reich's focus east. The legacy of Directive No. 16 is multifaceted; it stands as a testament to the limits of German power projection and the critical importance of air and naval supremacy in modern warfare. The failed operation ensured the United Kingdom remained a base for the Allies, from which the strategic bombing campaign and the eventual Normandy landings were launched. The directive and its aftermath are extensively studied in military academies, and the planned invasion remains a prominent subject in historical analyses of World War II and counterfactual history.

Category:Führer Directives Category:Military history of Germany during World War II Category:1940 in Germany Category:Operation Sea Lion