240 Stateless Syrians in Turkey and Lebanon of Statelessness in 1961 and the next agreements in the leadership of the United Nations tried to prevent the problem of statelessness considering it as a global issue. The problem of de facto statelessness left behind by the Syrian crisis, which is seen as the biggest historical event on a global scale after World War II, keeps its importance. When or whether the stability is to be provided in Syria is not known, but in the process of proving the status of being a Syrian citizen, it is likely that the mystery of what is waiting for the refugees will affect the return. In this way, despite the claim that hundreds of thousands of Syrian parents and infants and children are citizens of Syria, it is not possible to prove it in the current circumstances. However, it is necessary to prevent the children from being deprived of the basic human rights that begin with citizenship regardless of the parent’s condition or some behaviors. Therefore, they must be ensured to benefit basic human rights by registering to the system of the country where the minimum level of person resides. Otherwise, the individuals may be subjected to a double deprivation with unregistered statelessness. As a matter of national and international awareness, there are studies for the legal solution to the phenomenon of statelessness. In general, however, there is a tendency of the countries to protect the citizens of the countries becoming a party to a contract. The 1st and 2nd World Wars, the collapse of the Soviet Union in the 1990s and the problems in the Balkans and the civil war that started in the Middle East, especially in Syria and Iraq, caused millions of people to be born and lived outside their own territory. The fact that Syria is a neighbor to Turkey and Lebanon has enabled the migration of an important part of the immigrant population into the territory of these countries. As stated above, the sociological problems that have emerged with the inadequacy of practical arrangements for the phenomenon of statelessness which tried to be minimised by law cause the next generation to be deprived of national belonging. It is possible to express that both Turkey and Lebanon have gained an important position in the international arena due to the open door policies for the crisis in Syria. Comprehensive policies are being developed in coordinated activities with the UN. However, Turkey and Lebanon differentiate in the policies of status and social integration they have provided for Syrians. The unchanged political decision-makers in Turkey and decisions supporting the previous ones make it separate from Lebanon. In Lebanon, the establishment of a new government following May 6, 2018, general elections were naturally followed by a change in the policies for previous Syrians. But beyond that, the change of political power based on the population has led to the politicisation of Syrians. Therefore, despite Lebanon’s population of about 5 million and the economic situation that is proportional to it, it’s open-door policy allowed an intensive migration population to enter the country in a very short period of time. However, this situation has led to the production of an opposite policy in the political arena in a short time due to the negative reflections on the social and economic base as seen above. It can be stated that the situation of de facto statelessness discussed above in Turkey and Lebanon is mainly due to the following basic reasons. First of all, according to the Syrian constitution, citizenship is transferred only through the father, but one-quarter of the fathers died during the civil war, lost or were fighting, which caused the problem of citizenship for their children born in other countries. With a reverse reading, the mother’s inability to transmit citizenship to the next generation prepares the ground for the growth of an unregistered and stateless generation. The second other reason is that the notification and registration of the newborn in Syria are being carried out at the same time, which is not known by individuals who are far from their own country. In Syria, the competent authorities were notified within 30 days if the baby was born in the territory of Syria and within 90 days if the baby was born abroad, so they were registered in the family registry booklet, and the families were not given any document. Especially due to this situation, it BORDER CROSSING