By August 2022, drought in the Greater Horn of Africa has caused 3.6 million livestock deaths while 28 million people are highly food insecure and in need of urgent humanitarian assistance. The extent of early actions triggered by climate forecasts and food security outlooks has been insufficient to save lives and livelihoods. This experience reveals shortcomings in drought monitoring, preparedness, and implementation from transboundary to local scale. This project will improve management of extreme climate events by local governments to support pastoral livelihoods and communities by improving modelling, forecasting and anticipatory action plans. The project particularly focuses on the transboundary areas within the region as these host the most vulnerable pastoral communities with acute malnutrition levels. PASSAGE builds directly on a suite of recent and ongoing initiatives and major investments in anticipatory action.