Islamabad, Jan 13 (ANI): US Secretary of state John Kerry on his visit to Pakistan, said that the nation should fight terror groups that threaten Afghan and Indian and also US interests. US Secretary of state said this as he voiced sympathy for the victims of the December 16 attack on a Pakistani military school. Kerry said that terror outfits like LeT, Taliban and the Haqqani network pose a threat to regional countries like India and the world. Kerry, who travelled to Pakistan from India, said all militant groups should be targeted to bring security to the region. He also offered to help India and Pakistan overcome decades of distrust.