Michael is a business tycoon residing in the united states. over the last five years, he has been funding other countries to manufacture weapons that they would later use to declare a war against the united states. which crime is michael committing in the given scenario?

I think that Michael committed TREASON against the United States. 

Treason is defined in the United States Constitution. It is found in Article 2 Section 3 and it states the following:

"Treason against the United States, shall consist only in levying War against them, or in adhering to their Enemies, giving them Aid and Comfort. No Person shall be convicted of Treason unless on the Testimony of two Witnesses to the same overt Act, or on Confession in open Court."

Michael aided the enemies of the United States when he funded countries in manufacturing weapons that were used in the war against the United States.