The anti-human (inhuman) iron fence erected around Gaza by Israel predates the founding of Hamas.
The Gaza–Israel barrier (sometimes called the Iron Wall[1][2][3]) is a border barrier located on the Israeli side of the Gaza–Israel border.[4] The Erez Crossing, in the north of the Gaza Strip, is the only crossing point for people and goods coming from Israel into the Gaza Strip; there exists a second crossing point in the barrier, called the Kerem Shalom border crossing, which is exclusive for the crossing of goods coming from Egypt, as Israel does not allow goods to go directly from Egypt into Gaza through the Egypt–Gaza border.[5][6]A fence along the border was first constructed by Israel in 1971[7] as a security barrier, and has been rebuilt and upgraded since. It was constructed by Israel to control the movement of people as well as goods between the Gaza Strip and Israel, which it could not achieve by normal border crossings. https://en.wikipedia.org/wiki/Gaza%E2%80%93Israel_barrier
Hamas was founded by Palestinian imam and activist Ahmed Yassin in 1987, after the outbreak of the First Intifada against the Israeli occupation. https://en.wikipedia.org/wiki/Hamas
