Final answer:
Radar technology and incendiary bombing tactics enhanced Allied effectiveness in bombing Japanese mainland during World War II.
Explanation:
Radar technology was a crucial advancement that allowed the Allies to bomb the Japanese mainland more effectively during World War II. By using radar-equipped planes, the Allies could detect German U-Boats on the surface of the Atlantic, enhancing their bombing accuracy. Additionally, the development of incendiary weapons and firebombing tactics further increased the effectiveness of Allied bombings on Japanese cities.
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