A "treaty" is an agreed truce or temporary end of hostilities, since this takes place when two belligerents wish to stop fighting--either due to one side being defeated (or being close to defeat) or both sides viewing a cessation of hostilities as being favorable.
the speaker of the house does not have to be an elected member of the house of reresentitives and because the speaker is next to become president it has more power than the president of the senate