The EO only gives authority within the executive branch and those federal agencies. The EO doesn't have the legal weight of a law of the land. It can be rescinded by both the president and/or Congress when they provide oversight. A law of the land requires a vote by Congress to be rescinded
EXECUTIVE ORDER or EO are exclusively prerogative of the president that do not need the promulgation of congress. The president can issue EO left and right, without the approval of congress because it is exclusively intended for executive branch of the government and not the legislative body like congress. While a law are passed inside the congress for their deliverance and approval.
The United States sponsored the Contras because they were against the Sandinista government which was in place at the time in Nicaragua. The Sandinista government was a national reconstruction government, but it was a government that the United States viewed as communist. It came at the time where the United States was extremely weary of the Soviet Union and communist rule and a time when Reagan was president and his foreign policy was based very much on stopping opposing ideologies from gaining ground anywhere in the world.
It began in Palestine and spread throughout the Roman Empire
A direct effect of gaining the right to vote was that women played a far more prominent role in politics and therefore in the direction of the nation itself.