Israelis aren't the only demographic among the IDF's forces in Gaza. Foreign fighters from as far away as the United States, France, Spain, the Netherlands and even India actively participate in the hostilities. While the exact number of internationals fighting in Gaza isn't known, what is known is that citizens from numerous countries appear to be at least complicit in what has been called a genocide.

Under Israel's Law of Return, any individual with at least one Jewish grandparent or spouse can obtain Israeli citizenship. In this regard, many born abroad can serve in Israel's military while still keeping their birthplace's nationality. They often emigrate and then serve in the army.

Currently, 45% of the Israeli army's "lone soldiers," those who serve but don't have family in Israel, are new immigrants. The current "lone soldier" program has troops from over 60 countries, with approximately 35% from the U.S. It's important to note, though, that individuals part of Israel's "lone soldier" program are not considered mercenaries, who are professionals hired by a country's government to fight in its war and aren't citizens of said country.