Yalta Conference is about the discussion on the action plan
when the war will end. During this conference, the motion to establish the UN
was set.
Potsdam Conference was the meeting of the three leaders at
that time, namely Stallin, Truman, Churchill. This conference added tensions
between the Soviet Union, and US.
Iron Curtain Speech set up cold was tension and was known as
the most famous speech during this time.
No the Declaration of Independence was not intended to be a formal declaration of war since "<span>There was no need to declare war, as this power had yet to be established" and because it was implied. </span>