Answer : 1. "Patriot Air Defense Missile"
Explanation :

NATO announced the signing of a $5.5 billion contract for the purchase of 1,000 Patriot air defense missiles by member states in Europe to enhance security in the face of the threat from Russia. The agreement comes as Moscow launches a barrage of missile and drone attacks against Ukraine. Patriot systems supplied by countries such as the US and Germany have been used by Kiev to repel Russian attacks in the 11-month war.