Security sector reform (SSR) is a major challenge in many countries, including Egypt and Afghanistan. It can be extremely difficult to provide a clarification to the problems with it. Security sector reform “It is the set of policies, plans, programs and activities that a government undertakes to improve the way it provides security, protection and justice.” the assiduous work done in the revolution could have an immense impact on sustainable peace in that country, as well as on the way people in the country behave towards police officers if the security sector is not improved immediately, there may be a negative impact on the country's peace. Furthermore, this type of transformation differs between countries in political transition and those in the post-war period. There are numerous events that make SSR challenging, as well as a copious amount of events that allow this to occur comfortably. Security sector reform contributes to sustainable peace in countless ways. First, there are numerous ways to do a satisfactory job of security sector reform in countries in political transition. One article says, “A successful SSR program must include a central strategy to guide its operational initiatives.” (Dennys, Christian and Hamilton-Baillie, Tom). This means that the program must focus on one main idea. A very important procedure to follow is to prevent SSR programs from interfering with each other or to have “unity of effort”. This is necessary because you want programs to move in the same direction and be sequenced so as not to conflict with other programs. Sustained commitment is also very important in that you don't want anyone to challenge your pre-established plans. Another significant topic to pay attention to is monitoring and evaluation. You have to