Final answer:
The article introduces the idea that the U.N.'s new treaty is long overdue by emphasizing the historical context and the need for global peace and cooperation.
Step-by-step explanation:
The article introduces the idea that the U.N.'s new treaty is long overdue by highlighting the historical context and the need for global peace and cooperation. It mentions that the United Nations was established in 1945 with the goal of saving succeeding generations from the scourge of war and promoting social progress. The article also mentions that the idea of global citizenship emerged from the human wreckage of the two World Wars, further emphasizing the need for international collaboration and the urgency of the U.N.'s treaty.