Answer: Our current president
Explanation: Assuming you are referring to the USA, only the president could make such an action that would encourage others to make peace.
Surrender of Russia.
Russia did not surrender during the WWII, in fact, it was the Red Army the one that caught first Berlin.
The States within the US Could not agree over anything and no actual change could be created. In addition, the Central Government could not tax it's citizens. The Central Gov't in general was ineffective under the Articles of Confederation.
Great archipelago Indonesia,
Islam spread to Mali mainly through trade with Arab traders.