The interpretation that best aligns with the poet’s description of his aunt is:
The poet makes a statement about the contrast between giving support and taking action.
This interpretation reflects the idea that while the aunt may have had opinions about the war and could articulate reasons for it, there is an underlying tension between merely expressing support for the war and the actual realities and consequences of war itself. E.E. Cummings often critiques societal norms and conveys complex emotions surrounding such topics.