The Americans are seeking to remove global restrictions preventing free agricultural trade, which is viewed as a way to reduce a huge trade deficit.

An example of this would be a plan under which the United States federal government imposes unilateral tariffs and quotas to prevent international trade.

The sanctions 1) prevent Iraq from accessing billions held in foreign banks and 2) embargo all trade.

Today they are equally righteous about preventing free trade.

The work our customs did was to prevent trade.

Good agreements are needed to prevent trade becoming a Wild West story.

Nor can the best legislator in the world prevent trade with criminal or fraudulent intent.

We should not assume that everything that prevents unfettered free trade is an illegitimate obstacle.

In addition, a log must be kept of the quantities present in order to prevent fraud and illegal trade.

This is why new international trade regulations need to be put in place that prevent trade from leading to further carbon dioxide emissions.