The Pax Romana happened under Augustus' rule.
1The power of the Executive Branch is vested in thePresident of the United States, who also acts as head of state and Commander-in-Chief of the armed forces. ... Fifteen executive departments — each led by an appointed member of the President's Cabinet — carry out the day-to-day administration of the federal government
One of Truman's greatest achievements as president, which utilized the greatest extent of his executive powers, was the racial desegregation of the armed forces.
Answer:
D: Germany had already conquered most other countries in Europe, so it's military was weakened and not strong enough to compete against the Soviet Union's powerful army
Explanation:
If you know, the invasion (Code named Operation Barbarossa) was a COMPLETE failure. And Germany's army had weakened by the conquering of other European countries. The failure was mostly caused by poor planning and strategy.