Published in 1994, Henry Kissinger’s Diplomacia (Diplomacy) is a foundational text analyzing international relations, the balance of power, and the pursuit of national interest, known as Realpolitik. The work spans historical diplomacy from Cardinal Richelieu to the Cold War, highlighting the tension between American idealism and pragmatic realism, while outlining a 21st-century order driven by six major global powers. You can explore the text on Google Books or find summaries on Scribd . La diplomacia - Google Books