Airspace/ˈerspeɪs/ Definition 1 of 3Pro Tip 1/3National Control Airspace implies a nation's legal authority over the sky above its territory. During the conflict, the country's airspace was heavily monitored. Pro Tip 2/3Flight Safety Airspace regulations help ensure safety and manage air traffic effectively. Commercial flights adhere to controlled airspace corridors. Pro Tip 3/3Sovereignty Respect Entering another country's airspace without permission is a serious offense. The pilot avoided crossing into the neighboring country's airspace.