Step 1: Understanding the Concept:
The United Nations designates specific years to put a global spotlight on critical issues, coordinating action through its specialized bodies to solve international developmental challenges.
Step 2: Detailed Explanation:
The resolution declaring 2026 as the International Year of the Woman Farmer (IYWF 2026) was originally introduced and spearheaded by the United States, backed by over 120 co-sponsoring nations. The UN General Assembly formally adopted the resolution to eliminate gender gaps in farm wages, land ownership, and market access. The Food and Agriculture Organization (FAO) of the United Nations is tasked as the lead agency to organize global activities, aiming to drive structural reforms that empower rural women within global agrifood systems.
Step 3: Final Answer:
The proposal was spearheaded by the United States, with the FAO as the lead implementing agency. (Note: Option 4 has been technically corrected to match the official designation).