Mr. Pettit
Modern America
COUNTRIES INVOLVED IN WWI:
Allied Powers:
 U.S.A.
 Great Britain
 France
 Australia
 Russia
 Belgium
 Canada
 Cuba
 Romania
 Serbia
 Armenia
 Brazil
 Greece
 Portugal
Central Powers:
 Germany
 Austria-Hungary
 Ottoman Empire (Turkey)
 Italy
 Bulgaria
Neutral Countries:
# Afghanistan - Did not support or oppose any nation.
# Argentina
# Colombia
# Denmark - Traded with both sides.
# El Salvador
# Ethiopia
# Luxembourg - Never declared war on the Central Powers despite being invaded and
occupied by Germany.
# Mexico - Declined an alliance with Germany (see Zimmermann Telegram).
# Netherlands - An Ally of the UK by treaty. Traded with both sides.
# Norway - Gave naval assistance to the UK.
# Paraguay
# Persia - Occupied by British and Russian troops.
# Spain - Also treaty bound ally to the UK.
# Sweden - Financially supported Germany.
# Switzerland - Switzerland did declare a "state of siege"
# Venezuela - Supplied the Allies with oil.