LONDON and WARSAW, Poland — Britain and Poland are investigating possible cooperation in the development of a surface-launched, long-range missile in the latest step towards strengthening their ties in the defense sector. The two nations announced their intention to take a look at forming a partnership at the end of a visit Oct. 5 to Poland by British Defence Secretary Ben Wallace for talks with his Polish counterpart, Mariusz Błaszczak. Russia’s invasion of Ukraine has accelerated plans by