Voters in Indian-administered Kashmir return to the polls Tuesday to vote in the third phase of a four-phase election to fill seats in the state assembly.

Muslim militants who are fighting for an independent Kashmir or its merger with Pakistan oppose the elections. Nearly 500 people have died in election-related violence and there are fears that this year's election could be the bloodiest in Kashmir's violent history.

In this edition of Dateline, Jim Teeple, in the Kashmir valley, will report on Tuesday's polling and how apprehension and fear are affecting the voters and candidates. But first, Neal Lavon explains why Kashmir is such a disputed territory.