Over the past year Ukraine has devised and deployed domestically produced long-range drones for strikes deep inside Russia Ukrainian forces staged one of their biggest drone attacks on Russia since Moscow’s invasion more than four years ago. Key points and original sources are listed below.

• Over the past year Ukraine has devised and deployed domestically produced long-range drones for strikes deep inside RussiaS1

• Ukrainian forces staged one of their biggest drone attacks on Russia since Moscow’s invasion more than four years ago.S2