The US State Department has approved a $2.1 billion sale of 500 PAC-3 Missile Enhancement Segments (MSE) interceptors for Ukraine's Patriot air defense systems. The purchase will be financed by funds from Canada, Germany, Norway and Ukraine with the backing of the European Union. Lockheed Martin will be the prime contractor. However, the missiles have not yet been manufactured. With the ongoing war between the US and Iran, it is likely that Lockheed Martins production capacity will first focus on meeting US military requirements rather than supplying Ukraine. No delivery timeline has been released.