British and U.S. counterinsurgency (COIN) operations have been slow to respond and adapt to the rise of the global jihadist insurgency, whose base of support is global and whose exploitation of the virtual dimension has outstripped the West's. After analyzing past British COIN experiences and comparing them to the evolving nature of the modern jihadist insurgency, the authors suggest a new framework for future COIN operations.British and U.S. counterinsurgency (COIN) operations have been slow to adapt to the rise of the global jihadist insurgency. The authors analyze past British COIN experience, explore the evolving nature of insurgency, and suggest a new COIN framework.