It would be "Whether a new state or territory should enter the Union as Free or Slave" that had the most impact on the Civil War, since the North was strongly against the spread of slavery, while the South was in favor of it.
Italian merchants wanted to avoid working with Muslim middle-men who would take a part of the profit for supplying them with Asian goods. They developed naval travel to travel on their own and increase their profit.
Even though there are no choices in your question, here is some information that will help.
The Gulf of Tonkin Resolution was passed by the United States Congress on August 7, 1964. This allowed US President Lyndon B. Johnson to take any measures he wants in order to repel any attack against the US army and to use force however he wants to stop future aggression in Vietnam. This resolution essentially allows the president to send as much troops as he wants. Along with this, he can use whatever weapons/technology he wants. This gives the president a significant amount of power.
<span>The Successes of Reconstruction. President Lincoln's original goal in the Civil War was to hold the nation together. And in this, the war and Reconstruction were a success. The Confederacy was destroyed for good, and every state that had seceded was readmitted to the Union.</span>
