This paper deals with the causes of the Arab Spring in Yemen. It analyses political causes such as the system of political patronage and both the internal and external conflicts, which have weakened the state at multiple levels. It also discusses the social and economic causes, such as poverty, unemployment and the problems of oil, qat and water. This combination of political and socioeconomic factors, fuelled by the protests in Tunisia and Egypt, created a revolution, which led to the overthrow of the president, Ali Abdullah Saleh, who had ruled Yemen for 33 years., Veronika Kramáreková., and Obsahuje bibliografii