The sophisticated underground rocket launcher system in Gaza has been exposed by the terrorist organization in a video it released Saturday.

The video indicates the amount of effort and money that Hamas invested in its anti-Israel military infrastructure that is partly financed by foreign aid and transfers by Israel of taxes collected on behalf of the Ramallah-based Palestinian Authority, which funnels part of the funds to Hamas. 

The Israeli Air Force has knocked out a number of the underground sites, but it is not known how many remain.

Hamas has copied the Hizbullah tactic used in the 2006 Second Lebanon War, when Israeli intelligence was surprised by the use of underground bunkers and tunnels against the army.

Military intelligence has been far better in Gaza. Unlike Lebanon, where then-Prime Minister Ehud Barak pulled out all Israeli army personnel in a sudden withdrawal from the southern Lebanese security Zone in 2000, Gaza has no scarcity of collaborators working against the terrorist regime.

Army spokespersons said Sunday morning that intelligence information has helped the Air Force pinpoint targets, especially the underground launching sites and a storage building for the Iranian Fajr missiles that have been fired at Tel Aviv.