For what cause did president lincoln believe the U. S soldiers were fighting during the american civil war

Because he thought tha they were helping the union survive and preserve the union.

Explanation:

hope it helps

i do not know if this question has options, but a main impact of the federal reserve act of 1913, which created the federal reserve bank, was the international use of the u.s. dollar, which soon became the world's leading currency - particularly during world war i, since many nations around the world asked the united states for money.

answer; /// slavery should be outlawed in the new country, was part of the initial draft of the declaration of independence, but not part of the final