The SIPRI Yearbook is an authoritative and independent source of data and analysis on armaments, disarmament and international security. It provides an overview of developments in international security, military expenditure, weapons and technology, arms production and the arms trade, armed conflict and conflict management, and efforts to control conventional, nuclear, chemical and biological weapons.This 55th edition of the SIPRI Yearbook covers developments during 2023, including-Armed conflict and conflict management, including an overview of global and regional developments in armed conflicts, peace processes and peace operations, along with thematic sections on the role of Russian private military and security companies, food insecurity, and climate-related peace and security risks in Yemen -Military expenditure, international arms transfers and developments in arms production, including the consequences of the Russia-Ukraine war and ongoing geopolitical tensions-World nuclear for
