"This is Enterprise. An unknown object is identified at coordinates... It is approaching your ship at a speed of 60,000 kilometers per hour. Firing is approved, I repeat, firing is approved!"
"This is Frontier, roger that. The ship has entered level one preparedness, ammunition is being loaded..."
Inside the bridge of Frontier, the entire ship's officers and soldiers were ready.
The images from Enterprise showed an abnormal spot behind the asteroid and they suspect it may be traces of Harmony civilization. Although this observational anomaly did appear before, they made the same decision every time.
It was better to kill one hundred innocents than to let one perpetrator go free.