Buildings have been occupied by groups in several towns and cities in eastern Ukraine, while the Ukrainian government has begun a military operation to try and regain control. Borja Guijarro Usobiaga writes on potential diplomatic solutions to the crisis. He argues that any western-backed solution must involve Russia as a partner and be stronger than the response produced by the United States and the European Union to the situation in Crimea. He also notes that if the West cannot take the diplomatic initiative then the situation could escalate extremely quickly