So basically bud they declared war because Germany had sunk the Lusitania and was therefore trying to abandon the policy against unrestricted submarine warfare
What you basically need to know is that the contras were right-wing and that they opposed the left-wing government.
The left-wing governments were generally not seen as desired during the cold war because they could strengthen the communists, which were competing with the US.
So the US hoped that the contras would weaken or even replace the left-wing government.
The coalition forces that fought on the side of Kuwait consisted of Kuwait forces, the United States forces, the United Kingdom forces, the French forces, and the army of Saudi Arabia. It was odd to have this coalition for many people because of the support of Saudi Arabia, as well as the support that Europeans gave to the Kuwait forces.
A.) the end of the soviet blockade
the answer is C, the OPEC oil embargo :)