TEL AVIV, Israel (AP) — The Israeli combat soldier saw his teammates yelling in celebration, congratulating one another. They had just struck a vehicle of Palestinians driving near the Israeli-controlled part of the Gaza Strip, killing everyone inside. The reservist said scenes like this had become common after a fragile ceasefire took effect in October. In the weeks he was stationed in Gaza, he said, he saw soldiers relishing the chance to go after those who crossed — or came close to crossing — the so-called yellow line that divides the strip into Israeli-controlled and Palestinian areas. “It was a jungle,” the soldier, in his 20s, told The Associated Press. “After the ceasefire, the order was: If someone crosses the line, you shoot them.” As diplomatic efforts to strengthen the deal have stalled, three soldiers described to AP a sense of confusion in the embattled territory, with a lack of clarity on rules of engagement around the yellow line.…