In ground-based infrared device brevity, what does SPARKLE indicate?

• A. Stop marking with IR
• B. Mark by IR
• C. Begin pulse sequence
• D. Continue sparkle

Answer: (B)

SPARKLE is a directive to mark the objective using infrared methods. It tells the team to place an infrared mark on the target so that friendly forces equipped with IR sensors or devices can see the designation without using visible light. This is preferred when you want to keep marking covert or visible only to those with IR capability. The other options describe stopping IR marking, starting a pulse sequence, or continuing an ongoing sparkle effect, none of which align with the instruction to mark by IR. So the best answer is the choice that conveys marking the target by infrared.