What hindered trade trade between Germany the US?

Trade between Germany and the U.S. has been hindered by various factors, including tariffs and trade barriers, particularly during times of economic tension. Political disagreements, such as those related to foreign policy and military alliances, have also impacted trade relations. Additionally, fluctuating exchange rates and economic sanctions imposed on Germany at different times have further complicated trade dynamics. Overall, these factors have contributed to periods of strained economic relations between the two countries.