What is the theme for the general debate of the current session of the General Assembly?

The general debate is part of the General Assembly session and is held at the beginning of each regular session in September, in accordance with the Rules of Procedure and A/RES/57/301, and the agenda for the session. Usually, the general debate is agenda item 8 of the regular session agenda.

Each member state has the opportunity to speak during the general debate. Often heads of state or government represent their countries at the general debate. 

The theme for the general debate of the 79th session of the General Assembly is: 

Leaving no one behind: acting together for the advancement of peace, sustainable development and human dignity for present and future generations.

The information note on Arrangements for the high-level meetings and the general debate issued each session (A/INF/session/4) includes:

• Dates and information of the general debate and the high level meetings organized around the time
• Events convened by the Secretary-General
• Protocol registration and access arrangements for Member States, observers, intergovernmental organizations, specialized agencies and related organizations
• Treaty event
• Security Arrangements
• Media access arrangements and services
• Focal points for arrangements related to high-level meetings

The UN Journal is a good source of official information about these activities.