A Eurofighter jet, which is transferred to Romania in order to patrol the airspace in a NATO mission, is seen in a hangar at the German Air Force base in Neuburg an der Donau, Germany, February 17, 2022. REUTERS/Andreas Gebert 

A Eurofighter jet, which is transferred to Romania in order to patrol the airspace in a NATO mission, is seen in a hangar at the German Air Force base in Neuburg an der Donau, Germany, February 17, 2022. REUTERS/Andreas Gebert 

A Eurofighter jet, which is transferred to Romania in order to patrol the airspace in a NATO mission, is seen in a hangar at the German Air Force base in Neuburg an der Donau, Germany, February 17, 2022. REUTERS/Andreas Gebert 

A Eurofighter jet, which is transferred to Romania in order to patrol the airspace in a NATO mission, takes off at the German Air Force base in Neuburg an der Donau, Germany, February 17, 2022. REUTERS/Andreas Gebert 

A Eurofighter jet, which is transferred to Romania in order to patrol the airspace in a NATO mission, takes off at the German Air Force base in Neuburg an der Donau, Germany, February 17, 2022. REUTERS/Andreas Gebert 

A Eurofighter jet, which is transferred to Romania in order to patrol the airspace in a NATO mission, takes off at the German Air Force base in Neuburg an der Donau, Germany, February 17, 2022. REUTERS/Andreas Gebert 

A Eurofighter jet, which is transferred to Romania in order to patrol the airspace in a NATO mission, takes off at the German Air Force base in Neuburg an der Donau, Germany, February 17, 2022. REUTERS/Andreas Gebert 

Cal fire water dropping helicopters navigate the tight airspace over ash covered hills as the Colorado fire burns near Big Sur, California, U.S. January 22, 2022. REUTERS/Peter DaSilva 

A woman places flowers during a commemorative ceremony, which marks the second anniversary of the Ukraine International Airlines flight PS752 downing in Iranian airspace, in Kyiv, Ukraine January 8, 2022. REUTERS/Valentyn Ogirenko 

People attend a commemorative ceremony, which marks the second anniversary of the Ukraine International Airlines flight PS752 downing in Iranian airspace, in Kyiv, Ukraine January 8, 2022. REUTERS/Valentyn Ogirenko 

People attend a commemorative ceremony, which marks the second anniversary of the Ukraine International Airlines flight PS752 downing in Iranian airspace, in Kyiv, Ukraine January 8, 2022. REUTERS/Valentyn Ogirenko 

A relative places a candle during a commemorative ceremony, which marks the second anniversary of the Ukraine International Airlines flight PS752 downing in Iranian airspace, in Kyiv, Ukraine January 8, 2022. REUTERS/Valentyn Ogirenko 

Relatives react during a commemorative ceremony, which marks the second anniversary of the Ukraine International Airlines flight PS752 downing in Iranian airspace, in Kyiv, Ukraine January 8, 2022. REUTERS/Valentyn Ogirenko 

A relative reacts at a commemorative ceremony, which marks the second anniversary of the Ukraine International Airlines flight PS752 downing in Iranian airspace, in Kyiv, Ukraine January 8, 2022. REUTERS/Valentyn Ogirenko 

A woman attends a commemorative ceremony, which marks the second anniversary of the Ukraine International Airlines flight PS752 downing in Iranian airspace, in Kyiv, Ukraine January 8, 2022. REUTERS/Valentyn Ogirenko 

Two F-18 fighter aircrafts of the Spanish Air Force launch flares during the Ocean Sky 2021 Military Exercise for advanced air-to-air training in the southern airspace of the Canary Islands, Spain, October 21, 2021. REUTERS/Borja Suarez TPX IMAGES OF THE DAY 

An F-18 fighter aircraft of the Spanish Air Force performs a refueling in flight during the Ocean Sky 2021 Military Exercise for advanced air-to-air training in the southern airspace of the Canary Islands, Spain, October 21, 2021. REUTERS/Borja Suarez 

Two Eurofighters of the Spanish Air Force are seen in-flight during the Ocean Sky 2021 Military Exercise for advanced air-to-air training in the southern airspace of the Canary Islands, Spain, October 21, 2021. REUTERS/Borja Suarez 

A Eurofighter of the Spanish Air Force is seen in-flight during the Ocean Sky 2021 Military Exercise for advanced air-to-air training in the southern airspace of the Canary Islands, Spain, October 21, 2021. REUTERS/Borja Suarez 

Four fighter aircrafts of the Spanish Air Force are seen in-flight during the Ocean Sky 2021 Military Exercise for advanced air-to-air training in the southern airspace of the Canary Islands, Spain, October 21, 2021. REUTERS/Borja Suarez 

An F-18 fighter aircraft of the Spanish Air Force is seen in-flight during the Ocean Sky 2021 Military Exercise for advanced air-to-air training in the southern airspace of the Canary Islands, Spain, October 21, 2021. REUTERS/Borja Suarez 

Two F-18 fighter aircrafts of the Spanish Air Force are seen in-flight during the Ocean Sky 2021 Military Exercise for advanced air-to-air training in the southern airspace of the Canary Islands, Spain, October 21, 2021. REUTERS/Borja Suarez 

Since Jan. 1, 2021, Chinese military aircraft have flown 186 sorties into Taiwan’s air defense identification zone (ADIZ)–a section of international airspace countries can arbitrarily define as theirs to monitor. 

Canada's Prime Minister Justin Trudeau holds a press conference, as he tells reporters that the two Canadian citizens who were detained by Beijing have left Chinese airspace and will arrive back in Canada early on Saturday, in Ottawa, Ontario, Canada September 24, 2021. REUTERS/Blair Gable 

Canada's Prime Minister Justin Trudeau holds a press conference, as he tells reporters that the two Canadian citizens who were detained by Beijing have left Chinese airspace and will arrive back in Canada early on Saturday, in Ottawa, Ontario, Canada September 24, 2021. REUTERS/Blair Gable 

Canada's Prime Minister Justin Trudeau, accompanied by Canada's Minister of Foreign Affairs Marc Garneau, holds a press conference as he tells reporters that the two Canadian citizens who were detained by Beijing have left Chinese airspace and will arrive back in Canada early on Saturday, in Ottawa, Ontario, Canada September 24, 2021. REUTERS/Blair Gable 

Canada's Prime Minister Justin Trudeau, accompanied by Canada's Minister of Foreign Affairs Marc Garneau, holds a press conference as he tells reporters that the two Canadian citizens who were detained by Beijing have left Chinese airspace and will arrive back in Canada early on Saturday, in Ottawa, Ontario, Canada September 24, 2021. REUTERS/Blair Gable 

Canada's Prime Minister Justin Trudeau holds a press conference, as he tells reporters that the two Canadian citizens who were detained by Beijing have left Chinese airspace and will arrive back in Canada early on Saturday, in Ottawa, Ontario, Canada September 24, 2021. REUTERS/Blair Gable 

Canada's Prime Minister Justin Trudeau holds a press conference, as he tells reporters that the two Canadian citizens who were detained by Beijing have left Chinese airspace and will arrive back in Canada early on Saturday, in Ottawa, Ontario, Canada September 24, 2021. REUTERS/Blair Gable 

Canada's Prime Minister Justin Trudeau holds a press conference, as he tells reporters that the two Canadian citizens who were detained by Beijing have left Chinese airspace and will arrive back in Canada early on Saturday, in Ottawa, Ontario, Canada September 24, 2021. REUTERS/Blair Gable 

A man stands at a Royal Air Maroc ticket agency in Algiers, Algeria, September 23, 2021. Picture taken September 23, 2021. REUTERS/Ramzi Boudina 

A Royal Air Maroc ticket agency is seen in Algiers, Algeria September 23, 2021. Picture taken September 23, 2021. REUTERS/Ramzi Boudina 

In the week leading up to the Taliban entering Kabul, the sky over the city was a hive of activity, and hundreds of Afghans fled on airliners. Data from FlightRadar24 show that from Aug. 10 to 16, more than 80 international flights departed from Kabul. 

Delivery drones are seen midair during a demonstration whereby drones from various companies flew in a joint airspace and were managed by an autonomous control system in Haifa, as Hadera is seen in the background, Israel March 17, 2021. Picture taken with a drone. REUTERS/Ilan Rosenberg 

A man picks up a take away food delivery as he takes part in a demonstration whereby delivery drones from various companies flew in a joint airspace and were managed by an autonomous control system in Haifa, near Hadera, Israel March 17, 2021. REUTERS/Ronen Zvulun 

A man works on a computer at an autonomous control centre during a demonstration whereby delivery drones from various companies flew in a joint airspace near Hadera and were managed by the centre in Haifa, Israel March 17, 2021. REUTERS/Ronen Zvulun 

Delivery drones are seen midair during a demonstration whereby drones from various companies flew in a joint airspace and were managed by an autonomous control system in Haifa, in an open area near Hadera, Israel March 17, 2021. REUTERS/Ronen Zvulun 

Delivery drones are seen midair during a demonstration whereby drones from various companies flew in a joint airspace and were managed by an autonomous control system in Haifa, in an open area near Hadera, Israel March 17, 2021. REUTERS/Ronen Zvulun 

A delivery drone is seen midair during a demonstration whereby drones from various companies flew in a joint airspace and were managed by an autonomous control system in Haifa, in an open area near Hadera, Israel March 17, 2021. REUTERS/Ronen Zvulun 

A delivery drone is seen midair during a demonstration whereby drones from various companies flew in a joint airspace and were managed by an autonomous control system in Haifa, in an open area near Hadera, Israel March 17, 2021. REUTERS/Ronen Zvulun 

People attend a commemorative ceremony, which marks the first anniversary of the Ukraine International Airlines flight PS752 downing in Iranian airspace, in Kyiv, Ukraine January 8, 2021. REUTERS/Valentyn Ogirenko 

People attend a commemorative ceremony, which marks the first anniversary of the Ukraine International Airlines flight PS752 downing in Iranian airspace, in Kyiv, Ukraine January 8, 2021. REUTERS/Valentyn Ogirenko 

Victims' relatives react during a commemorative ceremony, which marks the first anniversary of the Ukraine International Airlines flight PS752 downing in Iranian airspace, in Kyiv, Ukraine January 8, 2021. REUTERS/Valentyn Ogirenko 

People attend a commemorative ceremony, which marks the first anniversary of the Ukraine International Airlines flight PS752 downing in Iranian airspace, in Kyiv, Ukraine January 8, 2021. REUTERS/Valentyn Ogirenko 

A victim's relative mourns during a commemorative ceremony, which marks the first anniversary of the Ukraine International Airlines flight PS752 downing in Iranian airspace, in Kyiv, Ukraine January 8, 2021. REUTERS/Valentyn Ogirenko 

People attend a commemorative ceremony, which marks the first anniversary of the Ukraine International Airlines flight PS752 downing in Iranian airspace, in Kyiv, Ukraine January 8, 2021. REUTERS/Valentyn Ogirenko 

Employees of the Ukraine International Airlines attend a commemorative ceremony, which marks the first anniversary of flight PS752 downing in Iranian airspace, in Kyiv, Ukraine January 8, 2021. REUTERS/Valentyn Ogirenko 

Victims' relatives attend a commemorative ceremony, which marks the first anniversary of the Ukraine International Airlines flight PS752 downing in Iranian airspace, in Kyiv, Ukraine January 8, 2021. REUTERS/Valentyn Ogirenko 

A French Rafale fighter jet demonstrates the interception of a Belgian air force transport plane as they fly over France, January 14, 2020 as part of NATO drills to deter Russian planes from entering allied airspace. Picture taken January 14, 2020. REUTERS/Johanna Geron 

British Royal Air Force's Typhoon Eurofighter jets demonstrate the interception of a Belgian air force transport plane as they fly over Britain, January 14, 2020 as part of NATO drills to deter Russian planes from entering allied airspace. Picture taken January 14, 2020. REUTERS/Johanna Geron 

A French Rafale fighter jet demonstrates the interception of a Belgian air force transport plane as they fly over France, January 14, 2020 as part of NATO drills to deter Russian planes from entering allied airspace. Picture taken January 14, 2020. REUTERS/Johanna Geron 

A British Royal Air Force's Typhoon Eurofighter jet demonstrates the interception of a Belgian air force transport plane as they fly over Britain, January 14, 2020 as part of NATO drills to deter Russian planes from entering allied airspace. Picture taken January 14, 2020. REUTERS/Johanna Geron 

A French Rafale fighter jet demonstrates the interception of a Belgian air force transport plane as they fly over France, January 14, 2020 as part of NATO drills to deter Russian planes from entering allied airspace. Picture taken January 14, 2020. REUTERS/Johanna Geron 

A British Royal Air Force's Typhoon Eurofighter jet demonstrates the interception of a Belgian air force transport plane as they fly over Britain, January 14, 2020 as part of NATO drills to deter Russian planes from entering allied airspace. Picture taken January 14, 2020. REUTERS/Johanna Geron 

Danish F16 fighter jets demonstrate the interception of a Belgian air force transport plane as they fly over Denmark, January 14, 2020 as part of NATO drills to deter Russian planes from entering allied airspace. Picture taken January 14, 2020. REUTERS/Johanna Geron 

Danish F16 fighter jets demonstrate the interception of a Belgian air force transport plane as they fly over Denmark, January 14, 2020 as part of NATO drills to deter Russian planes from entering allied airspace. Picture taken January 14, 2020. REUTERS/Johanna Geron 

A Danish F16 fighter jet demonstrates the interception of a Belgian air force transport plane as they fly over Denmark, January 14, 2020 as part of NATO drills to deter Russian planes from entering allied airspace. Picture taken January 14, 2020. REUTERS/Johanna Geron 

Danish F16 fighter jets demonstrate the interception of a Belgian air force transport plane as they fly over Denmark, January 14, 2020 as part of NATO drills to deter Russian planes from entering allied airspace. Picture taken January 14, 2020. REUTERS/Johanna Geron 

A Finnish F18 fighter jet demonstrates the interception of a Belgian air force transport plane as they fly over Finland, January 14, 2020 as part of NATO drills to deter Russian planes from entering allied airspace. Picture taken January 14, 2020. REUTERS/Johanna Geron 

British Royal Air Force's Typhoon Eurofighter jets demonstrate the interception of a Belgian air force transport plane as they fly over Britain, January 14, 2020 as part of NATO drills to deter Russian planes from entering allied airspace. Picture taken January 14, 2020. REUTERS/Johanna Geron