LONDON (AP) — The British Broadcasting Corp. announced Thursday it will cut 1,800 jobs, broadcast fewer programs and require staff to create content for television, radio and the Internet, creating a showdown with journalists and other employees.

Union leaders vowed to strike if the BBC went forward with the radical overhaul, which includes major cutbacks to news and documentary divisions. BBC journalists say the cuts threaten the quality of the broadcast and the union said a strike vote could begin today at noon.

BBC Director-General Mark Thompson told staff that 2,500 jobs will be cut over the next six years, but that 700 new jobs will likely be created.