Yemen remains the world’s worst humanitarian crisis with staggering levels of humanitarian need. Eighty per cent of the population – 24.1 million people – need some form of humanitarian assistance. Economic decline, restrictions on imports, shortages of foreign exchange and liquidity, and fluctuations in the value of the currency continues to put millions of people at risk of famine. Key assessments remain blocked, complicating efforts to adjust programmes based on the latest evidence. This makes it difficult to know with certainty whether there are large pockets of unmet needs across the country.