This collection contains author's analytical articles on the assessment of the situation in the eastern part of Eurasia, causes and conditions of the emergence of new threats and challenges to regional security in the SSS space. The second parts of the collection explore the effectiveness of solving the problems of ensuring stability and security in Eurasia, the role and importance of the Shanghai Cooperation Organization in this area, as well as developing proposals for improving work in this direction, taking into account the current new conditions of the international situation. The collection notes that the geopolitical and geo-economic location of the SCO member and observer states is strategically important for the successful construction of the Greater Eurasia regional security system. This implies the main task of the SCO - to neutralize the presence of external forces in the region, minimize their influence on the countries of Central and South Asia, exclude the possibility of playing on Sino-Indian, Iranian-Pakistani, Indo-Pakistani and other disputes and contradictions and make sure that the SCO countries themselves solve the problems existing in the region.