Which type of economy they stopped becoming? Is that what you mean? If so probably communist.
According to Kathe Kollwitz's diary, her sons and other young men in other countries all went willingly and joyfully into the war. Instead of a possibility of friendship in the future, they faced each other as enemies. Rushing into the war as soon as they are called without looking closer, without examining whatever reasons for fighting they were given.
Unrestricted submarine warfare was first introduced in World War I in early 1915 ... those from neutral countries, would be attacked by the German navy. ... The incident prompted U.S. President Woodrow Wilson to send a ... government demanding an end to German attacks against unarmed merchant ships.