How does a mine differ from an improvised explosive device (IED)?

A mine is specifically designed for use in naval warfare and typically deployed in areas like waters where ships may travel, functioning as an explosive that detonates upon contact with or proximity to a target. In contrast, an improvised explosive device (IED) is often constructed from various materials, typically homemade, and can be utilized in a variety of conflict contexts, especially in land-based scenarios, often to ambush enemies or secure control over specific areas.

The distinction highlighted in this answer emphasizes both the conventional nature of mines as military-grade weapons used in formal naval operations and the irregular, improvised nature of IEDs, which showcases their diverse application in unconventional warfare and tactics. IEDs are created from available materials and can vary drastically in size, design, and purpose, which sets them apart from the standard manufacturing and deployment of military mines.