What two German actions caused the United States to enter World War 1?
Aattack on Belgium, the use of poisonous gas
Bthe Zimmerman note, submarine warfare
Ctheir confiscation of contraband, the sinking of Lusitania
Dthe blockade against great Britain, the invasion of France
Aattack on Belgium, the use of poisonous gas
Bthe Zimmerman note, submarine warfare
Ctheir confiscation of contraband, the sinking of Lusitania
Dthe blockade against great Britain, the invasion of France