Historical clue formulations

• Some military hazards, for short — 2026-04-21
• Homemade bombs, for short — 2025-03-13
• Roadside bombs, for short — 2022-03-30
• Modern war hazards, for short — 2020-12-29
• Roadside bombs, for short — 2017-10-22
• Certain military hazards, for short — 2016-06-07