The Pakistani Taliban have named Mullah Fazlullah as their new leader, after the death of Hakimullah Mehsud in a drone attack.
Mullah Fazlullah is a particularly hardline commander whose men shot Malala Yousafzai on a schoolbus in October 2012.
Mehsud was killed when missiles struck his vehicle in the North Waziristan region on 1 November.
The Pakistan government had been trying to set up peace talks, but the BBC reports the new leader has already rejected the initiative. Mullah Fazlullah wants revenge for the killing of Mehsud.
A Taliban spokesman told the BBC the military and the governing party would be targetted.
Mullah Fazlullah led a brutal campaign in Swat between 2008 and 2009, enforcing hardline Islamic law, that included burning schools and public floggings and beheadings.
