Members of Salafi Jihadist group stand guard during a press conference in Gaza city on July 7, 2015. Until now, Al-Ansari's jihadi group and other Gaza-based Salafist organizations have hesitated to officially declare themselves part of ISIS, instead preferring to say they were allied with ISIS ideology. This even though their written statements and videos brandished the ISIS flag. (Photo by Majdi Fathi/NurPhoto) (Photo by NurPhoto/NurPhoto via Getty Images)