According to John V. Denson, Honest Abe and FDR behaved much like each other in the intervals preceding their respective wars:

. . . it is instructive to compare the circumstances for Lincoln at Fort Sumter with those for Roosevelt at Pearl Harbor. In neither case was there an actual “surprise” attack by the enemy. In fact, there was an extended period of time, many months prior to the “first shot,” in which both Lincoln and Roosevelt had ample opportunity to attempt to negotiate with the alleged “enemy,” who was desperately trying to reach a peaceful settlement.

In both cases, the presidents refused to negotiate in good faith. Lincoln sent completely false and conflicting statements to the Confederates and to Congress — even refused to talk with the Confederate commissioners. Roosevelt also refused to talk with Japanese Prime Minister Konoye, a refusal that brought down the moderate, peace-seeking Konoye government and caused the rise of the militant Tojo regime. Both Lincoln and Roosevelt repeatedly lied to the American people and to Congress about what they were doing while they were secretly provoking the “enemy” to fire the first shot in their respective wars. Both intentionally subjected their respective armed forces to being bait to get the enemy to fire the first shot.

As always, economic factors played a large part in deciding whether war would be waged:

Another interesting comparison of the situations affecting the decisions of Lincoln and Roosevelt is that economic interests of an elite few played a major role in the decisions of both presidents to instigate a war. It is doubtful that either Lincoln or Roosevelt would have wanted to disclose the influence of these economic interests to the public in a congressional hearing where the question of war was to be decided upon.

The study of the history of wars indicates that economic factors have always played a major role in starting wars, but rarely are these economic factors disclosed to the public as the reasons.

Many businessmen and bankers believe in private enterprise but do not believe in free enterprise. . . . These types of people want a partnership between private enterprise and the government, which is the essence of fascism and the cause of many wars. . . .

Ludwig von Mises made a clear distinction between private enterprise and free enterprise. Mises wanted a complete

separation of the economy from the government, just like separation of church and state, which meant no regulation or control by the government but also no partnership with or help from the government, either economically or militarily. In the free-enterprise system, if any business or any bank wants to transact business globally, it must do so at its own risk and without the help of the government.

There would be no foreign aid, especially no aid to prop up dictators in order for them to do business with any particular economic interests. There would be no war in order to create a devastated area like Bosnia or Yugoslavia that needs to be rebuilt by American businesses who have the political influence to get these foreign contracts. Mises thought that separation of the economy from the government was necessary in order to produce peace rather than war.

For more, read Denson’s Mises Daily article, “Lincoln and Roosevelt: American Caesars”, here.