Which of the following is NOT a SEAD timeline?

• A. Continuous
• B. Interrupted
• C. Non-standard
• D. Immediate

Answer: (D)

SEAD timing describes how long and when suppression of enemy air defenses is kept active during an operation. Continuous means you maintain suppression throughout the engagement to prevent reacquisition as long as the mission requires. Interrupted uses cycles of suppression and gaps, allowing other actions or passage of friendly forces while still keeping pressure on enemy radars and missiles. Non-standard covers mission-specific or irregular timing that adapts to changing conditions, threats, and constraints on the battlefield.

Immediate, while ideal to reduce risk, isn’t a standard SEAD timeline because suppression actions require planning, coordination, asset deployment, and execution steps that take time. You need to identify targets, synchronize with maneuver, and ensure guidance and fires aren’t compromising friendlies, which cannot be accomplished instantaneously. For those reasons, Immediate isn’t used as a SEAD timeline.