U.S. Assistant Secretary of State for South Asia, Richard Boucher and Chief Central Command, General David Petraeus will arrive here on Sunday. Richard Bouncer and General Petraeus will be holding a meeting with Pakistan Defence Minister, Ahmed Mukhtar on Monday, sources of Defence Ministry said. According to sources, their meetings are also expected with the President Asif Ali Zardari and Prime Minister, Yousuf Raza Gilani. War on terror and current situation in tribal areas will be high on the agenda in the above meetings, sources added.