In response to World War I , he developed anti-militarist ideas .
The son of a baptist hotelier , Constandse completed the normal school between 1914 and 1918 and in this period came into contact with the teetotalers movement .
In response to World War I , Constandse developed anti-militarist ideas .
The son of a baptist hotelier , Constandse completed the normal school between 1914 and 1918 and in this period came into contact with the teetotalers movement .