 Complete the following phrase:  Kaiserslautern became a presence on the national scene through the early 1950s, capturing their first German championship in 1951 with a 21 victory of their own, this time over Preußen Münster. They won a second title in 1953, followed by two losing final appearances in 1954 and 1955. The club also sent five players to the national side for the 1954 FIFA World Cup, which West Germany won in what became popularly known as 