Ionosphere
A layer of the Earth’s atmosphere that reflects radio waves, enabling long-distance communication.
Iowa-Class Battleship
A class of powerful battleships built by the United States Navy during World War II. The Iowa-class ships were known for their speed, firepower, and armor, and they played a significant role in the Pacific theater of war.
Iodine Tablets
Small tablets containing iodine, used to purify water by killing bacteria and other harmful microorganisms. Iodine tablets were essential for soldiers in the field during World War II, as they provided a way to make contaminated water safe to drink.
Infantry Support Weapon (ISW)
A type of weapon designed to provide fire support for infantry units, often heavier and with a longer range than standard infantry weapons.
Initial Operational Capability (IOC)
The stage when a new military system or weapon is deemed ready for limited operational use, often marked by initial deployments and testing in real-world conditions.
Intelligence
Information gathered about enemy capabilities, intentions, and activities. Critical for successful military operations in World War II.
Insignia Ribbon
A narrow strip of fabric bearing an insignia, often worn on military uniforms to indicate awards, decorations, or unit affiliation. Insignia ribbons were a common sight during World War II, showcasing soldiers’ achievements and service.
Insurrection
A violent uprising or rebellion against an established government or authority. While not a major factor in World War II itself, insurrections played a role in various theaters, such as the Warsaw Uprising against Nazi occupation.
Intelligence Network
A system of individuals and organizations involved in gathering and disseminating intelligence. During World War II, intelligence networks were vital for gathering information about enemy activities, planning military operations, and securing victory.
Intercontinental Rocket
A long-range rocket capable of traveling across continents, delivering payloads such as bombs or satellites. While not used during World War II, the development of intercontinental rockets after the war significantly advanced space exploration and increased the potential for long-range warfare.