The **main reason for the isolationist foreign policy** was the **self-interest of the States to make sure the nation flourishes** by focusing on the commerce to further develop the economics, not the political connections, affairs or interventions as they are costly.

**After the Independence war**, **the U.S.** was a **developing country**. Thus, focusing on the country’s prosperity by strategizing to not spend the money on unnecessary international conflicts and politics because they would not benefit the States more then it would it cost. This policy allowed the U.S. to expand in commerce, further developing the nation. Only when the war with Spain took off, the U.S. started to act and could afford to act in a dominant international way.

The isolationist approach was reasonable to the U.S. because the nation was developing, and there was no point in political involvement in politics that do not benefit the States.

The United States is a potent world force with a lot of political power and influence. Prosperity is one of its goals. For a state to achieve prosperity and have political power at the same time, comes with its responsibilities and strategizing.

It is a responsibility to be informed about the current global economic circumstances. **Global economic issues might affect other surrounding countries, which will ultimately affect the States.** Therefore, if necessary, the **government might change the foreign policies to help preserve the nation** and assist it in dictating the political outcomes. The States wants to secure, and aim for the national and, hopefully, global prosperity. This might demand a change in the foreign policies.

The matters and changes in the global politics, affairs, crises, and commerce can affect the well-being of the States. If necessary, the foreign policy might be changed to accommodate the States and, ultimately, preserve and improve the nation.

The **idea behind containment is establishing foreign policies that serve to protect the nation’s political interest** from another nation’s unwanted increasing powers. The States have, for this purpose, set up military bases across the world as a way to establish the power, support the allies, and be prepared for the action of containment. Even if nothing is currently underway, it is necessary for the States to take precautions.

The **containment was implemented into the foreign policies made to suppress the spreading of communism**. It was a response to a series of Soviet political moves with a goal to expand the communism sphere. Even though the situation is now clear as far as the spread of communism, the States are keeping an eye for communist North Korea and Cuba, as they represent possible threats.

The cold war was a struggle that affected the entire world. It came consequentially after the second World War. It **led to many crises around the globe**.

Despite the U.S. and Soviets being in the center of attention, **political impositions and wars were underway with other nations** as well; the Korean War, Vietnam War, Cuban missile crisis, et cetera. It was a global battle for prevalence between socialism and communism.

The **competition between the Soviets and Americans** would sometimes, **indirectly or directly, end in a war**. It was a time of political shifts and political racing between the U.S. and Soviet Union which was affecting the entire globe, especially the allied countries. The **two potent forces tried gathering as many allies as possible** by making political moves in the foreign territories.

For example, the American Marshall Plan was one of the most significant moves in the cold war because it rebuilt Europe.

Things happening in the world affect everyone, including the States. Problematic situations and political shifts are, significantly, more felt in the times of fast travel and instant, advanced communication thanks to the internet. The change in the global economic conditions and circumstances is no exception from affecting the United States as well.

With a potent force like the Soviet Union falling off, it has left the States to deal, for some time, with the global issues on its own. Many global issues in the world today can affect the States, even more than in the late 20th century. Wars are ongoing in Afghanistan, terrorist plots across the continents, and more countries have nuclear weapons, representing more threats to the States. Therefore, **we can say that foreign policies have become more difficult** after the fall of the Soviet Union.