The power needed for this role is the Head of State. This role places the President as responsible for performing ceremonial duties, receiving leaders with formal dinners, charitable causes and the celebration of citizens with an outstanding contribution. Therefore, the White House Tree Lighting and any other holiday celebration are handled by the Chief of State.
Blitzkrieg tactics were very successful, because they were surprise attacks, so the country being attacked usually didn't have time to prepare for the attack. They were also very quick, so Germany could blitzkrieg attack another country, and then leave before the country attacked could gather its military to defend themselves.
Wampanoag. First English speaking Indian they met was Squanto