Operation Joint Guardian marked the beginning of NATO's peacekeeping initiative in Kosovo, following the conclusion of the Kosovo War that had led to rampant violence and ethnic cleansing primarily between Serbian forces and the ethnic Albanian majority. This operation commenced as a response to a humanitarian crisis that unfolded over months of conflict, resulting in extensive displacement and suffering of civilians, particularly ethnic Albanians. With the signing of the Kumanovo Agreement, which facilitated the cessation of hostilities, NATO was tasked with a pivotal role under the auspices of the United Nations Security Council.

On this day, approximately 50,000 NATO troops from various member countries entered Kosovo to establish a secure environment and oversee the implementation of the peace settlement. The influx of these forces was carefully calculated to guarantee not only the protection of displaced persons but also to deter any resurgence of violence. The entry of the Kosovo Force (KFor) was instrumental in fostering stability and initiating humanitarian efforts to support the local population. As troops established their presence, they also commenced operations to clear landmines and secure critical infrastructure with a focus on aiding the return of refugees.

Operation Joint Guardian signified a profound military and humanitarian mission aimed at rebuilding Kosovo’s political and social landscape. The mission's success relied on cooperation with local authorities, international organizations, and non-governmental entities working together to stabilize the region effectively. KFor's role in providing security allowed for the gradual resumption of civil services and rebuilding efforts, which were crucial for the long-term peace of the area.