ADJ. controlled, restricted | British, French, etc.
VERB + AIRSPACE cross (into), drift into, enter, fly into, stray into, violate The jet had crossed into Russian airspace. | fly out of, pass out of | open They have decided to open their airspace to commercial aircraft. | close
PREP. in ~ The glider was in Dutch airspace. | out of ~ They were now out of controlled airspace.
PHRASES a violation of airspace The president said that all future violations of our airspace would result in serious consequences.