Jolie joined British Foreign Secretary William Hague on the visit to the Democratic Republic of Congo (DRC) on Monday.
Their trip to central Africa, which began in Rwanda, is aimed at forcing the Group of Eight world powers to address the issue more seriously. Hague said he would be making the issue his priority when he hosts the annual meeting of G8 foreign ministers next month in London.
"This visit is about hearing first hand from people who have endured rape and sexual violence during the conflict in the eastern DRC," Jolie said.
"We want to learn the lessons that their experience holds for how the world can protect thousands of women, men and children at risk of rape in many other conflict zones.
"And we want to persuade governments around the world to give this issue the attention it deserves.
"Unless the world acts, we will always be reacting to atrocities, treating survivors rather than preventing rape in the first place."
'Meaningful action'
​Jolie and Hague are calling on the G8 to agree that rape and sexual violence constitute breaches of the Geneva Conventions governing warfare. They also want a new international protocol on the documentation and investigation of the issue.
"More often than not the international community looks away, the perpetrators of these brutal crimes walk free and the cycle of injustice and conflict is repeated. We have to shatter this culture of impunity," Hague said.
"It is time for real, meaningful action by the governments of the world to say that the use of rape as a weapon of war is unacceptable, to bring perpetrators to justice and to lift the stigma from survivors.
"This is my personal priority for the meeting of G8 foreign ministers." The campaign will also be taken to the UN Security Council in June and the UN General Assembly in September.–AFP