The answer is: B, D, and F
Explanation:
Alliances, Security threats, and trading relationships.
He obviously didnt show great leadership just because of the year he was born or because he lived on Mt Vernon. "Washington led his army to a decisive victory at York town" would be a great way he showed leadership during the Revolution.
Marius's election as a consul made the most sweeping changes to the Roman army. They were known as the Marian Reforms. Shortly after his election, he increased the numbers of the active army as he was concerned about a Barbarian invasion. Marius relaxed the strict recruitment policies. Until then, a Roman soldier had to provide his own uniform and weapons, own land and be of a certain social class and a Roman citizen. Marius allowed all Roman citizens to join the army irrespective of what social class they were. They also did not have to own land.
The Siege of Vicksburg was a major union victory because it allowed the Union forces to control the Mississippi River and had the effect to cut the Confederate forces in half by isolation.