Furthermore ,the idea of manifest destiny threatened us since US have already take over Mexico Spain France and Great Britain ,British North America would be their next target .In another way Confederation prevent Rupert's Land and British Columbia from being annexed by the US, protecting our territory so why not do so? Specifically, in Canada west the both political leaders support confederation since colonies are really expensive to support .Our father - Macdonald was making a deal currently with the parti bleu to form a government . Confederation will increased the potential of trade and more security against the people across the border; less involvement of the church in their government end of political deadlocks and the senate would support the idea of representation through region and a representation through population .Yet, Canada west gain more participation in their local and regional (provincial)