A Palestinian gunman, his rifle wrapped in a prayer mat, walked to a West Bank checkpoint and killed two Israeli soldiers at close range on Tuesday, just a day after both sides hinted at progress toward a truce and a quick Israel-Palestinian summit.The shooting was the first deadly attack on Israelis since October 24, when Palestinians killed three soldiers guarding a Gaza settlement. In the Gaza Strip, troops raided a refugee camp, setting off a gun battle that wounded nine Palestinians, one critically, and one Israeli soldier. Despite the renewed fighting, the Israeli and Palestinian prime ministers will meet next week, Israeli Foreign Minister Silvan Shalom said Tuesday after meeting with Secretary of State Colin Powell in Belgium.