What unilateralism refers to the future of the United States?

After January 2018, the U.S. has conducted one of the most massive foreign economic policy changes since the 1930s trade wars, abandoning post-World War II multilateralism and adopting a new strategy of going it alone. There are huge implications for the U.S. and global economic growth, and the repercussions for the ability of U.S. companies to access foreign markets are widespread.

Uncertainty was the defining characteristic of this....