"Ukraine will be a reliable advocate for the victims of the Malaysian Boeing Flight MH17 tragedy and uses its non-permanent membership in the UN Security Council to keep the issue among the key topics of the UN Security Council agenda," Poroshenko said. In addition, the president thanked the Netherlands for its political support, solidarity and practical help to Ukraine in combating external aggression, as well as in the development of a European state. Poroshenko invited King Willem-Alexander to visit Ukraine at his convenience.