The Food and Nutrition Security Assessment (FNSA) is a multi-agency, multi-sectoral exercise led by the government of Kenya, and is conducted in 23 arid and semi-arid Counties. Given the bimodal rainfall pattern in Kenya, and the importance of rainfall to food security, the assessments are conducted bi-annually after every season: the short rains (October-December) and the long rains (March-May). The 2019 Long Rains Assessment was conducted between 7 th and 20th July 2019 by the Kenya Food Security Steering Group (KFSSG) in collaboration with the County Steering Groups (CSGs). The KFSSG is a multi-agency body comprised of government departments, UN agencies and NGOs concerned with food and nutrition security and is chaired by the National Drought Management Authority (NDMA) and co-chaired by the World Food Programme. The overall objective of the assessment was to determine the extent and impact of the 2019 long rains on food and nutrition security in 23 ASAL counties, considering the cumulative effects of previous seasons and other shocks and hazards which affect food security.