Unions may organize a particular section of skilled workers (craft unionism, traditionally found in Australia, Canada, Denmark, Norway, Sweden, Switzerland, the UK and the US), a cross-section of workers from various trades (general unionism, traditionally found in Australia, Belgium, Canada, Denmark, Netherlands, the UK and the US), or attempt to organize all workers within a particular industry (industrial unionism, found in Australia, Canada, Germany, Finland, Norway, South Korea, Sweden, Switzerland, the UK and the US). These unions are often divided into "locals", and united in national federations. These federations themselves will affiliate with Internationals, such as the International Trade Union Confederation. However, in Japan, union organization is slightly different due to the presence of enterprise unions, i.e. unions that are specific to a plant or company. These enterprise unions, however, join industry-wide federations which in turn are members of Rengo, the Japanese national trade union confederation.