The Top Five Air Forces at the Beginning of the Second World War

When the Second World War began in September 1939, air power was still a relatively young branch of the military. Yet, it was already clear that air superiority would be critical in shaping the conflict. By this time, several nations had developed large, modernized air forces equipped with fighters, bombers, and reconnaissance planes. Below are the five most significant air forces at the outbreak of the war, the types of planes they fielded, their relative strengths, and how they fared as the war unfolded.

1. Luftwaffe (Germany)

Numbers (1939): Around 4,000 aircraft, with about 1,200 modern bombers and 1,000 modern fighters.
Aircraft:
- Fighters: Messerschmitt Bf 109 (fast, modern monoplane fighter), Bf 110 (twin-engine heavy fighter).
- Bombers: Heinkel He 111, Dornier Do 17, Junkers Ju 88 (versatile fast bomber).
- Dive Bombers: Junkers Ju 87 Stuka (highly effective in early Blitzkrieg campaigns).
Technology: Advanced radio communications, effective coordination with ground forces, and combat experience from the Spanish Civil War.
Performance in the War: The Luftwaffe dominated in the early years (Poland, France, and the early stages of the Battle of Britain). However, its failure to defeat the RAF in 1940 and its later struggles against Soviet and American air forces revealed weaknesses in strategic bombing and long-range capability.

2. Royal Air Force (United Kingdom)

Numbers (1939): Roughly 2,000 modern aircraft, plus several hundred older models.
Aircraft:
- Fighters: Supermarine Spitfire (state-of-the-art), Hawker Hurricane (less advanced but more numerous).
- Bombers: Vickers Wellington, Handley Page Hampden, Armstrong Whitworth Whitley.
- Others: Bristol Blenheim (light bomber, also used as a fighter).
Technology: Radar (Chain Home system) gave the RAF a crucial edge in defense. Training programs and aircraft production were rapidly scaled up.
Performance in the War: The RAF won the Battle of Britain in 1940, preventing German invasion. Later, Bomber Command carried out devastating raids over Germany, while the RAF contributed heavily in the Mediterranean, North Africa, and Northwest Europe.

3. Armée de l’Air (France)

Numbers (1939): About 1,200 modern aircraft, with additional outdated planes still in service.
Aircraft:
- Fighters: Morane-Saulnier MS.406, Bloch MB.152, Dewoitine D.520 (the best French fighter but too few in number).
- Bombers: Lioré et Olivier LeO 451, Amiot 143 (many bombers were obsolete by 1939).
Technology: Lagged behind Britain and Germany in standardizing modern fighters and bombers. Many French fighters were slower and less maneuverable than the Bf 109.
Performance in the War: The French Air Force fought bravely in 1940 but was overwhelmed by German air superiority and rapid Blitzkrieg tactics. Some aircraft and crews continued the fight with the Free French Air Force alongside the RAF and later the Soviets.

4. Soviet Air Force (VVS)

Numbers (1939): Enormous — around 8,000 aircraft, but the majority were obsolete biplanes like the Polikarpov I-15 and I-16.
Aircraft:
- Fighters: Polikarpov I-16 (modern monoplane but aging by 1941), I-15 (obsolete biplane).
- Bombers: Tupolev SB-2 (fast light bomber), Ilyushin DB-3 (long-range bomber).
- Ground Attack: Early precursors to the later famous Ilyushin Il-2 Sturmovik.
Technology: The Soviets had quantity but not quality in 1939. Training and organization were weak, and Stalin’s purges of military leadership devastated effectiveness.
Performance in the War: The VVS was badly mauled in 1941 during Operation Barbarossa, losing thousands of aircraft on the ground. However, Soviet industry relocated eastward, producing advanced planes like the Yakovlev Yak-3, Lavochkin La-5, and Il-2. By 1943–45, the Soviets rebuilt into one of the most powerful air forces of the war.

5. Regia Aeronautica (Italy)

Numbers (1939): Around 3,000 aircraft, though only about half were modern.
Aircraft:
- Fighters: Fiat CR.42 (biplane, outdated), Macchi C.200 (modern monoplane, underpowered).
- Bombers: Savoia-Marchetti SM.79 (effective medium bomber/torpedo bomber).
Technology: Italian planes were elegant but often under-armed and under-powered compared to German, British, or American aircraft. Many were obsolete biplanes at the war’s start.
Performance in the War: The Regia Aeronautica struggled against the RAF in North Africa and the Mediterranean. While the SM.79 was effective as a torpedo bomber, Italy could not match Allied or German production levels. After 1943, Italian forces were divided, with some fighting alongside the Allies and others under German command.

Conclusion

At the outbreak of the Second World War, the Luftwaffe and RAF were the most advanced and effective air forces, setting the stage for decisive air battles in Europe. The French and Italian air forces were large but hindered by outdated equipment. The Soviet Air Force had huge numbers but suffered from poor training and obsolete designs, only becoming truly formidable later in the war.

Ultimately, air power proved decisive, not just in battles like Britain and Stalingrad, but in the long-range bombing campaigns that crippled Axis industry. The early strengths and weaknesses of these five air forces shaped the trajectory of the largest conflict in history.