Fundamentals of Political and Legal Integration of Cross-border Cooperation Between the Russian Federation and the Republic of Kazakhstan

The purpose of the research. The article examines the current political and legal processes of integration accompanying the sphere of cross-border cooperation between the Russian Federation and the Republic of Kazakhstan. The paper highlights the key areas of interaction: political, trade and economic, transport, energy, environmental and health direction. The importance and significance of harmonization of the national legislation of neighboring countries and the creation of an interstate legal framework for cross-border cooperation is emphasized. Analyzed a number of treaties and agreements for 2023–2024 jointly adopted at the annual meetings of heads of state. In addition, challenges and prospects for future cooperation are presented, including improvements in infrastructure connectivity, tax regulation and strategic planning until 2030. The study concludes that comprehensive cooperation is necessary to ensure sustainable development of the regions.