http://www.asahi.com/ajw/articles/14350509 Olympics requirement: Players must be citizens. Jewish requirement: "Making Aliyah": Prove Jewish heritage, make trip to Israel and apply for citizenship Funding provided by Jewish National Fund-USA https://www.jewishaz.com/community/team-israel-prepares-for-olympics-with-quick-stop-in-arizona/article_63fb1ddc-b4dc-11eb-95bb-4bc71d627040.html "The fundraising goal is $1 million and since March 25, they have raised a little more than $302,000." Team is training in Arizona provided by Arizona Diamondbacks at no cost. So Israel Olympics baseball is funded with US money and played by US folks who now have dual citizenship.