Poland has secured a contract for the procurement of Barbara aerostats, which will be used for border surveillance with Russia and Belarus, according to the Polish Ministry of Defense website. The Polish government has decided to procure four reconnaissance aerostats named Barbara, with an estimated cost of $960 million. They will be deployed along the eastern and northeastern borders of Poland. According to the Polish Ministry of Defense, the Barbara aerostats are capable of detecting missiles, aircraft, drones, and surface vessels within a radius of over 300 km. Poland will be the first coun…