Final answer:
The post-war 14th and 15th Amendments influenced the formation of the National Woman Suffrage Association by sparking a push for women's suffrage based on the interpretation of these amendments.
Step-by-step explanation:
The post-war 14th and 15th Amendments had a significant influence on the formation of the National Woman Suffrage Association (NWSA). These amendments, which granted citizenship and voting rights to African American men, led women's rights activists, including Elizabeth Cady Stanton and Susan B. Anthony, to advocate for women's suffrage. The NWSA argued that the amendments, particularly the 14th Amendment's guarantee of equal protection, already included women's right to vote.