squadron
noun /ˈskwɒdrən/
  /ˈskwɑːdrən/
 [countable + singular or plural verb]- a group of military aircraft or ships forming a section of a military force- a bomber/fighter squadron
 Oxford Collocations DictionarySquadron is used before these nouns:- commander
- leader
 Word Originmid 16th cent. (originally denoting a group of soldiers in square formation): from Italian squadrone, from squadra ‘square’.