maintain radio silence(Sir, we're instructed to maintain radio silence. • In general, ships at sea normally maintain radio silence unless a tactical situation indicates that it should be broken4uzhoj)
observe the ceasefire(He said, "it is important for NATO and international security that hostilities end, the suffering stops, and a peaceful solution is found." He called on both sides to show restraint, observe the ceasefire, and de-escalate now.aldrignedigen)