Hamas is a Palestinian group based in the Gaza Strip. It has a political wing and an armed wing. Both are actively struggling for Palestinian independence.
Founded in 1987, Hamas has been a counter group to the Palestinian Liberation Organization (PLO) and has been internationally shunned as a terrorist organization because its military wing periodically attacks Israel and its citizens.
In Gaza, price hikes for pretty much everything from potatoes to petrol, have been making making people's lives even harder in recent weeks. That's partly due to the destruction of tunnels, which were used to smuggle in goods from Egypt to Palestine. At the same time, the Hamas government, which is in financial trouble, has increased taxes.
In response to rocket fire toward Israel, the country's military aircraft has hit two Hamas targets in the Gaza Strip. The airstrikes marked the fourth day in the worst flare-up of violence since the 2014 50-day war.