Question

The soldiers on the border are always prepared____ any eventuality

Answer 1

'for' may be a right answer

Answer 2

Answer :

The soldiers on the border are always prepared for any eventuality.

Cambridge English Dictionary defines 'preposition' as 'in grammar, a word that is used before a noun, a noun phrase, or a pronoun, connecting it to another word.'

'For' is a preposition which, according to the Cambridge English Dictionary means 'because of or as a result of something.'