The French Revolution impacted other countries in various ways. In Europe, the revolution led to a series of wars between various countries and the French. It also led to the rise of Napoleon and the empire he won, albeit briefly.
Since you originally put this in the "United States of America" section, though, I will look mostly at the revolution's impact on the US. The French Revolution caused the US a great deal of trouble. First, it helped split the country between pro-British and pro-French factions. Second, it led to many problems in foreign policy. The French and British went to war, and the US was caught in between with both countries preying on US shipping to the other country. This eventually led to near-war with the French and finally to the War of 1812 with the British.