Question

How did Germany prevent the United States from shipping goods to the other Allied countries?

Answer 1

Depending on what war you are talking about they used similar tactics.

Step-by-step explanation:

In World War One the German Empire used unrestricted submarine warfare to stop any shipping goods between the US and the United States. Anti-Submarine equipment had not been developed so the chances of ramming a U-boat were not likely, nor destroying it when it surfaced.

In World War Two, Nazi Germany used U-boats as well to stop America's "lend-leasing" policy that gave resources and munitions to allied nations. As technology was more advance, submarine tactics were made to destroy American cargo ships efficiently without the loss of U-boats from allied escort ships. One infamous tactic, for example, was the "wolfpack tactic" in which multiple U-boats attacked multiple cargo ships in the dead of night after trailing them the whole day.

Answer 2

Blockades, part of economic warfare, had been employed throughout history. The Allied blockade (1914-1919), which aimed to prevent war supplies reaching Germany, ultimately also targeted the civilian population. It had its counterpart in the German attempt to block supplies to the Entente. Despite the blockade, Germany was able to trade overseas via neutral states. The Allies thus put pressure on the neutrals to limit exports to Germany

Step-by-step explanation:

hope this helps