one challenge was establishing a better government since the one running during the American revolution was really weak (they were called the articles of confederation)
another one was establishing balence in the new republic, everyone just won the battle from a king; so why have another one? This was a challenge and eventually came to the solution of having a president. They also established the House of Representatives and the senate House So the president wouldn’t have much power.
Preemption
This doctrine is centered around the attempt to repel or defeat a perceived imminent offensive or invasion. The aim is to gain a strategic advantage in an impending (allegedly unavoidable) conflict shortly before it materializes into a crisis. Its principles include unilateralism and the use of preventative war.
On September 1st, 1939 Germany invaded Poland.
Since OPEC has influence on member countries' economic growth and development. ... Moreover, despite the existing quotas on oil production, the member countries make benefit by oil exporting. OPEC influence and maintain the prices of oil by controlling the volume of oil production and generate revenue.
