Thomas Jefferson was the President during this undeclared war with the pirates of Tripoli ,also called the first Barbary War in 1801-1805.
The Tripolitan war or the First Barbary War took place between 1801-1805 when Thomas Jefferson was the US president.
Abraham Lincoln was president during the US Civil War.
James Knox Polk was the US president during the Mexican War.
Abraham Lihcoln was the president during the US civil war.
Woodrow Wilson was the US president during WW I.
William McKinley was president during the brief Spanish-American War.
William McKinley was the US President during that war and Theodore Roosevelt served during that war.
Abraham Lincoln was the President of the US during the Civil War.
Woodrow Wilson was the US President during this entire war.
Woodrow Wilson was the president of the US during the entire war.
The US president during WW2 was Franklin D. Roosevelt.
President Woodrow Wilson declared war on German in World War 1 and was in office during the war.
James Madison was the president of the United States throughout the entirety of the war of 1812. He served as president from 1809-1817.