Complex sentence: To begin with the analysys of an international leader we need to start with the basis, we need to define wath is leadership, is a process of social influence, which maximizes the effort of others, towards the achievement of a goal (1).
Split into simpler sentences: To begin with the analysis of an international leader we need to start with a basis. We first define leadership as a process of social influence, which maximizes the effort of others, towards the achievement of a goal (1).