The Bank of Toronto emerged from the war in 1945 stronger than ever, with assets more than doubled since 1939. With the post-war boom they became more active in business lending and in the penetration of new markets. However, they quickly realized that the costs of expansion and competition with much larger rivals made their objectives difficult to realize. Neither bank had engaged in acquisitions or mergers in order to grow, but both determined that a union with a bank of equal size would place them in a much stronger position to take advantage of the opportunities of the post-war economy.