Political Leaders of WWI

Give me the name(s) of the leaders of the country from 1914-1918
Tell me their title; President, Prime Minister, Chancellor and etc....
Who was their commander of the military during the same period.
One might have more than one leader and/or military general for some countries.

Country     Leader      Title      Time period      General name

USA
GRB
FRA
RUS
GER
ITA
OTT
AUS-HUN