Islamabad, Pakistan (CNN) --  The militants behind Wednesday's deadly strike on a Pakistani marketplace that killed at least 90 people -- most of them women -- are "on the losing side of history," U.S. Secretary of State Hillary Clinton said at a joint news conference with her Pakistani counterpart. "If the people behind the attacks were so sure of their beliefs let them join the political process, let them come forth to the people and make their case that they don't want girls to go to school, that they want women to be kept back, that they believe they have all the answers," Clinton said in response to the car bombing in Peshawar.
@highlight
Clinton condemns bombing of Peshawar market which killed at least 90 people Wednesday
@highlight
Of militants who carried out the attacks, she said: "They are on the losing side of history"
@highlight
The U.S. Secretary of State is in Pakistan to shore up strained relations
@highlight
Clinton said relationship is about more than security and anti-terror campaign
Clinton arrived in @placeholder on Wednesday for a series of meetings with top Pakistani officials.