Conversation so far:
Which war broke out?
Civil War.
What did Seward do in the war?
Seward sent Lincoln a memorandum on April 1, proposing various courses of action, including possibly declaring war on France and Spain.
Why war with those countries?
CANNOTANSWER.

Question: Did he communicate with Lincoln other times during the war?
Self-contained rewrite: Besides the memorandum on April 1, did William H. Seward communicate with Lincoln other times during the civil war?