Aces High

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Across
  1. 2. - (verb) to move up, to climb
  2. 4. - (noun) a road planes use before they take off the ground
  3. 6. - (verb) to be in flight - "to be...."
  4. 7. - (verb) to advise, to alert, to inform about a danger
  5. 10. - (noun) an anti-aircraft artillery
  6. 11. - (noun) a military name for a plane
  7. 12. - (noun) a penetrating explosion
Down
  1. 1. - (idiom) a desperate situation in which there are only two possibilities : winning everything or losing everything
  2. 3. - (noun) a middle point of a group
  3. 5. - (noun) an attack by airplanes and aircrafts
  4. 8. - (verb) to take off a plane with all possible speed
  5. 9. - (noun) attack by surprise