attack -1 n.

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Across
  1. 5. [C] a rapid, powerful military attack, especially by aircraft
  2. 6. [C, U] the act of an army entering another country by force in order to take control of it
  3. 8. [C] an attack on a place in order to take control of it
Down
  1. 1. [U] a violent attack or threats by one country against another
  2. 2. [C] a planned series of military attacks which sometimes take place over a long period of time
  3. 3. [C] a short surprise attack on the enemy by soldiers, ships or aircraft
  4. 4. [C] (formal) a sudden, temporary entry into a place controlled by the enemy, especially across a border
  5. 7. [C, U] (in a war) an aggressive attempt to hurt or defeat the enemy using weapons and violence