Since 2015, Islamic State (IS) and its affiliates have remained the world's deadliest terrorist group. The total number of IS attacks rose globally until 2022, but the number and overall intensity of attacks have declined in recent years, leading to a slight reduction in fatalities. While some chapters have declined, others, such as Khorasan chapter, have increased their activities substantially. IS has continued to expand its presence in the Middle East, Central Asia and sub-Saharan Africa. IS is no longer as centrally organised as it was at its peak in 2015, when it controlled territory in Iraq and Syria roughly the size of France. The destruction of its so-called caliphate by 2019 led to decentralisation and a shift towards low-cost, highimpact attacks. These tactics have allowed IS to sustain its operations despite military and territorial losses, demonstrating its adaptability. Today, IS operates through regional affiliates, each pursuing distinct goals tailored to local conte...