Answer : 3. "Japan"
Explanation :

Japan recently signed an agreement with the US to purchase 400 Tomahawk missiles, versatile long-range cruise missiles. Made in the US, these missiles can be launched from ships or submarines, targeting fixed locations such as communications and air-defense sites. Flying at low altitude, Tomahawks use satellite navigation and TERCOM radar for precise guidance. Powered initially by solid propellant and later by heat-efficient turbofan engines, they provide a strategic advantage in high-risk scenarios, enhancing Japan's defense capabilities.