In this research, the development of cross-border cooperation (CBC) to study the factors and stimuli affecting the stability of the ::::union:::: in the border regions were discussed. The aim of the present study, functional and combination method (qualitative and quantitative) is. The data-gathering tool was a questionnaire and interview. The statistical community included various experts in the fields of political science, geography, economics, sociology, law enforcement experts, governorate and governorate in Sistan and Baluchestan province. Using a targeted sampling, 70 experts were selected. For analysis of data, descriptive tests and binary logistic regression model (LM-Newton-Marcard-Raphson method) were used. The results showed that in the area of planning for unity in Sistan and Baluchestan except for the determination of the right of the Hirmand River in the Sistan region, which was concluded with the country over a period of time, the plan was not approved or implemented, and among the five factors Economic, social, cultural-religious, institutional-structural and political security, three economic factors (0.478), political-security (0.473) and cultural-religious (0.363) have the most effect on the stability of unity of border regions in Studied area. The results of this study can be used to develop border cooperation cooperation and coherence stability in different border regions of Iran.
 

 The establishment of new cities and settlements and the development of economic and industrial activities on the shores of Makran, is inevitable, and since the creation and development of new cities has been one of the policies in land management in recent decades, planning and designing a new city in Regional development orientation of this region is essential. Therefore, in this regard, the purpose of the present study is the analysis of planning approaches and design of the new city of Tis in order to develop the region of Makran beaches. The present study is applied in terms of nature and descriptive-analytical in terms of method. Theoretical studies were collected using documentary method, and research data and information were collected using interviews and questionnaires. The statistical population of the study includes specialists, administrators, university professors and experts. Using purposive sampling method, 183 experts were determined as the sample size. To analyze the variables and approaches of the research, first using the method of interviews and interactive discussions with experts and specialists as a statistical sample of the research, each of the planning approaches of new cities was examined. Also, descriptive tests, Spearman correlation test and hierarchical analysis model were used to analyze the data. The results showed that the exit of the region from deprivation and vulnerability, creating a scientific and educational hub in the region, and designing a new and smart city to create a sustainable city have been the most important approaches explaining the planning and design of the new city. Also, there is a significant and positive relationship between planning approaches and design of the new city of Tis and the development of Makran beaches, and among these, the investment variable in Makran beaches has the highest relationship with regional development in the study area