Fraud and the newly effective first-past-the-post voting system were the culprits; although the BANU was still relatively popular amongst the countrymen. In 1922 after gaining the approval by a plebiscite, the government began trying and imprisoning leaders of opposition parties for their roles in previous wars. In the face of repression, several parties decided that the overthrow of the government was a necessity to their survival.
Fraud and the newly effective first-past-the-post voting system were the reasons; even though the BANU remained somewhat popular among citizens. In 1922 after gaining approval through a plebiscite, the government started trying and imprisoning opposition party leaders for their roles in past conflicts. Facing repression, several groups decided that overthrowing the government was necessary to ensure their survival.