Reportedly with time, other organizations and countries also joined this war, such as Hezbollah, Houthi, iran and Lebanon. Hamas fired thousands of rockets targeting Israeli cities on 7 October. Apart from this, Hamas boys had infiltrated the areas adjacent to the border and killed people, but this attack was not as intense and sudden as it appears. Preparations for this attack were going on for a long time.
Perhaps this attack was part of the plan to attack israel like 9/11. According to some reports, Hamas had planned to carry out this attack in 2022 itself, but it was postponed. Reports revealed that Hamas postponed the attack for a year to increase coordination with iran and Hezbollah and strengthen its military skills. international media organizations such as the New York Times, Washington Post and Wall Street Journal have reported that Hamas had already begun preparations for a major attack against israel, which was called "The Big Project".
Moreover according to reports, from january 2022 to august 2023, Hamas leaders and commanders made detailed plans for the attack in 10 high-level meetings. Hamas leaders Yahya Sinwar, Muhammad Zaif, Marwan Issa and his brother Muhammad Sinwar were involved in these discussions. The aim of the attack was to destroy Israel's military infrastructure and target the civilian population. In 2021, Hamas sought financial assistance from iran and received $10 million. Later, Hamas sought financial assistance of $500 million over two years.
The attack was originally scheduled for late 2022, but Hamas postponed it in order to secure more support from iran and Hezbollah. In august 2023, Hamas deputy chief Khalil al-Hayya visited lebanon and met with a senior commander of Iran's Islamic Revolutionary Guard Corps. Plans for the attack were discussed at the meeting, but Hezbollah and iran said they needed more time to "prepare the situation."