By the following season, the ARFU and SRFU had both collapsed. The North Western League was organized in an effort to replace the Albertan and Saskatchewan unions, leaving the BCRFU as the only purely provincial union operating in Western Canada. The WCRFU subsequently agreed to a format whereby the BCRFU and NWL champions would have the right to challenge the WIFU champion for the right to represent the West in the Grey Cup. Ultimately, no such challenge would be issued by either league, neither of which survived the Second World War. The WIFU expanded to four teams when the Edmonton Eskimos joined in 1938. The Eskimos lasted only two years before withdrawing following the outbreak of the war. The Bronks left the following year, but were replaced by the Vancouver Grizzlies following the collapse of the BCRFU. This arrangement lasted only one season, with the WIFU suspending operations altogether for the duration of the war in 1942.