GAZA CITY, Gaza Strip - A strike launched from Gaza killed two Thai workers in southern Israel on Tuesday, police said, hours after Israeli airstrikes toppled a six-story building in the Palestinian territory that housed bookstores and educational centers.With the war between Israel and Gaza's Hamas rulers showing no sign of abating and truce efforts apparently stalled, Palestinians across Israel and the occupied territories went on strike in a rare collective action against Israel’s policies.Violence erupted at one protest on the outskirts of the West Bank city of Ramallah.