NEW : Secretary of state arrives in Tokyo . Clinton 's 13-day trip will involve key Israeli and Palestinian issues . She will visit Afghanistan , as well as meeting Israeli and Palestinian leaders . In Afghanistan , she will attend a conference about Afghanistan 's future .
NEW : Secretary of state arrives in Afghanistan . Clinton 's 13-day trip will involve key Middle Eastern and Asian issues . She will visit Egypt , as well as meeting Israeli and Palestinian leaders . In Tokyo , she will attend a conference about Afghanistan 's future .