An estimated 160,000-170,000 Americans are in Israel, as residents, tourists or in some other capacity. An estimated 500 to 600 American citizens are in Gaza. https://www.10tv.com/article/news/nation-world/israel-hamas-conflict/american-death-toll-in-israel-rises/507-c6c1a099-4dd9-48b8-a170-5a17fd1b7115