<span>British government leaders didn't present the Zimmermann telegram to Wilson for a few weeks. Hall reminded them that outrage was growing in America over Germany's announcement late in the day of January 31 that the German navy would resume unrestricted submarine warfare. In fact, that policy provoked the U.S. government to cut diplomatic relations with Germany in February.</span>
Answer:
I would usually use finally but that answer could change depending on the application. Go with your gut and try grammarly if you feel that finally does not work.
1 because he is sharing personal thoughts and feelings about their situation
