WARSAW, Poland — California-based defense technology firm Shield AI has offered Poland a role in its X-BAT autonomous vertical-takeoff fighter jet program, with the country potentially hosting some of the manufacturing activities for the aircraft, according to Polish Prime Minister Donald Tusk. “Their intention is to also cooperate with Poland, and to produce in Poland, for the X-BAT program, the first autonomous combat aircraft in the world,” Tusk said at a June 16 press conference in Warsaw. “