Where did NATO leaders hold a conference following a Russian drone incursion?

The NATO leaders held a conference in Warsaw to address security concerns following a Russian drone incursion. This conference was significant as it underscored NATO's commitment to collective defense and regional stability in response to emerging threats from Russia. The choice of Warsaw as the location also reflects Poland's strategic position as a frontline state within NATO, particularly in relation to Russian military activities. The discussions likely involved reinforcing defense measures and cooperation among member states to ensure readiness against potential aggressions.

The other options might be notable for various NATO events, but they do not align with this specific conference in response to the drone incident. Bucharest, Berlin, and Brussels have hosted significant NATO summits or meetings in the past, yet Warsaw was particularly chosen for the situation at hand, making it the correct context for this incident and subsequent discussions.