Bank of Montreal integrated its newly acquired subsidiary, Bank of the West, directly into its primary United States banking operations, BMO Harris Bank N.A., following regulatory approvals and operational system conversions. This structural merger unified BMO's existing Midwestern retail footprint with Bank of the West's extensive Western states network. To streamline brand identity and customer experience across the country, the combined United States operations were subsequently rebranded uniformly under the streamlined name BMO Bank, eliminating the legacy division names and establishing a coast-to-coast commercial and retail presence.