It takes a great deal of training to unify all these recruits into an efficient fighting machine.

What does the sentence above mean,please?Emotion: smile
So the whole sentence means it takes sometime before the new solders are trained to be efficient fighters.
A newly engaged member of a military force

or a newly enlisted soilder..
Teachers: We supply a list of EFL job vacancies
 Danyoo's reply was promoted to an answer.