A - Correct: This option correctly uses the parallel past simple tense defined in accordance with the other verbs determined and waged.

B - Incorrect: This option does not follow the parallel structure by using the active participle defining while the other verbs are in the past tense.

C, D, E - Incorrect: These options omit words and change the sequence of words, which consequently changes the original meaning of the sentence.

A is the correct answer.