Simply, once the US interests found out that the Lavi could provide serious competition for it's F-fighters, they cut their part in the budget, which was 30-40%. Without that money, Israel could not complete the project. There wasn't much choice involved on Israel's part.
Hello user Logout | profile
You have watched of 10 articles
Death toll in central Israel truck-bus collision rises to five; more than 20 injured (Haaretz)
from the article: F-35 - take it or leave it