Since the Israeli invasion of the Gaza Strip, an inverted red triangle has been used by pro-Palestinian protesters.[1] The red triangle as a Palestinian symbol dates back to the Arab Revolt, after which it was also used in the Palestinian flag. More recently, combat footage published by Hamas uses an inverted red triangle as an arrow to indicate Israeli military targets, such as tanks, just before they are struck.[2][3] Usage of the triangle has spread to the international war-related protests, with some anti-Israel protesters using the symbol.[4]