In the spirit of the 50th anniversary of the United Nations and the United Nations Decade of International Law, the contributors honour, with this legal treatise a, devoted friend of the United Nations and international law, Judge Manfred Lachs - a noted judge, diplomat, humanist and, above all, teacher. The work includes a variety of perspectives on international law relating to what were Judge Lachs' four main areas of interest: the theory and practice of international law, the United Nations, the World Court, and space law.;The book meets the need for a reference work covering selected subject areas and providing different perspectives on some of the key issues of current concern. Many experts in various fields related to international law, including Judges of the International Court of Justice, diplomats, and professors of law - most of whom knew Judge Lachs personally - have contributed. The contributors represent all political, legal and cultural regions of the world and provide a range of backgrounds and viewpoints, offering a variety of ideas for strengthening international law, based on their assessment of the lessons of the past.