The war between Israel and Hamas has already spilled over to the wider Middle East, with prospects of a confrontation between regional and world powers becoming ever more likely.
Across the region, the fighting has largely been confined to tit-for-tat attacks between Iran-backed militias on one side and the US, Israel and its allies on the other.
The US has attacked Iranian-backed groups in Yemen, Syria and Iraq, while Iran-linked groups have targeted American personnel in Iraq and Syria.
Tehran has also struck what it said were anti-Iran groups in Iraq, Syria and Pakistan.
As tensions across the region rise, CNN takes a look at where Iran or its allies are present, where US forces are stationed and where both sides have conducted military operations since the start of the Israel-Hamas war.
Organizations:
Hamas, CNN
Locations:
Israel, Iran, US, Iranian, Yemen, Syria, Iraq, Tehran, Pakistan