Martlet is a lightweight air-to-surface, surface-to-air, and surface-to-surface missile developed by Thales Air Defence for the United Kingdom. It is named after a mythical bird from English heraldry that never roosts, the martlet. Developed as the Lightweight Multirole Missile (LMM) to meet the UK's "Future Air-to-Surface Guided Weapon (Light)" requirement, the Ministry of Defence (MOD) placed an initial order for 1,000 missiles with deliveries due to start in 2013. However, initial operating capability was considerably delayed and took place in 2021 with full operating capability anticipated in 2024. The missile was given the name "Martlet" in British service.