Graphic on the estimated global atomic weapons stockpile
After almost five years of difficult negotiations, Russia and China moved to a new level of arms trade in 2015. Russia finally agreed to sell China 24 Sukhoi‑35 (Su-35) combat aircraft and four S-400 SAM systems for approximately USD $7 billion. These are currently among the most advanced weapons Russia produces. This agreement marked a turning point. It was the first significant sale of Russian major weapons to China since the mid-2000s, representing a sizeable addition to Russia’s total annual value of arms exports, which has hovered between USD $13.5 billion and USD $15 billion in recent years.