6. 2
7.4
8.3
9.1
Hope this is right good luck
The answer is drug use among the troops.
Drugs were rampantly used by soldiers to make them fearless, have more energy and renew themselves of their low morale in the battle field. This was highly used even by US soldiers, which in the end became a problem.
<span>To unite and achieved among the disparate cities of Greece.</span>
C, exploring the Northwest Passage