A video by the hacking group entitled “Anonymous Message To Israel” threatens to take down servers and websites belonging to the government, military and banks in #Op_israel on 7 April.

It shows a suited man wearing a V for Vendetta style Guy Fawkes mask as an electronic voiceover delivers a speech to “foolish Zionist entities”.

“We are coming back to punish you again, for your crimes in the Palestinian territories,” it says, in English with Arabic subtitles.

[youtube https://www.youtube.com/watch?v=5wxzJsBmdd8?feature=player_embedded&w=640&h=360]

“All we see is continuous aggression, bombing, killing and kidnapping of the Palestinian people, as in the last war against Gaza in 2014.”

The voice claims Anonymous will not stand by as foreign countries remain “silent” and will respond to “heinous crimes against humanity”.

Showing footage from the Gaza conflict last summer, which the Israeli Defence Forces (IDF) labelled Operation Protective Edge, the voiceover continued: “We’ll erase (Israel) from cyber space as we have every year – 7 April 2015 will be an electronic holocaust.”

Anonymous calls young Palestinians the “symbol of freedom, resistance, and hope”, telling them to “never give in” and vowing support.