Description: Radical changes in the international situation affect considerably the views on the nature of security threats in the border guard sphere, ways of their timely identification, prevention and neutralization. Therefore, detection, formulating and systematizing of problems, arising at present are relevant and have a perspective of development in the border security sphere. It is expedient to consider them through the prism of the analysis of military-political risks, challenges and threats on the border in the light of their practical implementation in the conditions of rapid changes in international and global security environments. Ensuring national security in the border guard sphere will become possible when the State Border Guard Service of Ukraine realizes how to provide it. The result will depend on the understanding the meaning of the concept «the national security of Ukraine in the border guard sphere» as a component of the national security of Ukraine where it is necessary to highlight the processes of ensuring the protection of the interests of a man and a citizen, society and state. This approach will help to understand: where, how and when in these processes the obstacles may arise and foresee risks, challenges and threats of their emergence, as well as their sources. Without the methodological definition of the content of these concepts for ensuring the national security of Ukraine in the border guard sphere, it is impossible to determine and grade them. Most scientific works show different views on the interpretation of the concepts of "risks", "challenges", "threats" and their ranking. The study proposes to treat them as different degrees of influence on the provision of the national security in the border guard sphere. When comparing terms, the risk is the lowest level of danger, and the threat is its highest level. Our approach will be based on accepted in our country national concepts in accordance with the Strategy of National Security of Ukraine.
Keywords: state border, risk, challenge, threat, national security of Ukraine, border guard sphere