In Wonder Woman, when Trevor and Diana enters the assembly hall, we hear following dialogues from Sir Patrick Morgan AKA Ares.
Germany is an immensely proud nation. They will never surrender. Now look. The only way to end this war... Colonel, I need to talk to you outside. ...and restore world peace... is to negotiate......an armistice.
Our only aim at this time...... must be to achieve peace......at any cost!
It is clear here that he wants to negotiate peace. However, he turns out to be Ares, a god of war who wants to continue an endless war.
So why is he pressurizing on negotiating peace if he wants to continue the war?