In what scenario would the Patriot missile system be deemed operational?

The Patriot missile system is considered operational when it is fully configured and ready to engage. This means all necessary systems are in place, including the radar, ground control, and missile readiness, ensuring that the system can effectively detect, track, and intercept aerial threats as intended. Being operational signifies that it is capable of performing its primary function in a real-world scenario, which includes not just readiness but also the effective execution of missile defense tasks.

Other scenarios listed, such as training exercises, decommissioning, or simulation mode, do not meet the criteria for operational readiness as they imply that the system is either not in active service or is functioning under conditions that do not represent its full capability to counter actual threats.