Hamas IDFVIDEO OF IDF BLOWING UP ISLAMONAZI TUNNELS……. By KGSaccess_time11 years agochat_bubble_outlineLeave a comment And this should be followed up by a policy of no more delivery of concrete into the Strip. WATCH: IDF systematically destroying Hamas’s network of tunnels By YAAKOV LAPPIN 07/20/2014 19:32 Some underground passages housed explosives, communication lines; longest destroyed tunnel stretched for 1.2 km, ending in Israel.