Gillette established itself as a leader in shaving products through various strategic moves during World War I and II. It provided millions of razors and blades to the US military during both wars. In the post-war period, Gillette faced competition from Auto Strop Safety Razor company but eventually merged with them in 1930. Throughout the mid-20th century, Gillette introduced new products, made several acquisitions of companies in personal care and other sectors, and organized itself into multiple divisions to drive growth.