21. This was regarded by the West German government as a breach of international treaty obligations . 22. Assessments are set by a committee of nations, and paying dues is a treaty obligation . 23. It is the refusal to fulfill a treaty obligation . 24. These are drafted to include any international treaty obligations and the customary laws of war. 25. Not all member states abide by their treaty obligations . 26. Either party sought to honour treaty obligations signed by Czechoslovakia including the World Heritage convention. 27. The government also failed to meet their treaty obligations . 28. Last February, a NAFTA arbitration panel ruled that the United States was violating its treaty obligations . 29. But Kennedy also emphasized our alliances, our multilateral treaty obligations and our participation in international organizations. 30. The International Court of Justice later ruled that the United States had violated its treaty obligations .