By not joining the First World War until the very end, and not joining the League Of Nations
Answer:
Harry S. Truman stepped in as president after Roosevelt's death.
Free trade<span> is the economic policy of not discriminating against imports from and exports to foreign jurisdictions. Buyers and sellers from separate economies may voluntarily </span>trade<span> without the domestic government applying tariffs, quotas, subsidies or prohibitions on their goods and services.</span>
