Lebanon - Israel’s invasion of Lebanon resulted in US troops having to be sent to the region as a peacekeeping force, this resulted in a suicide bombing of the US embassy that killed 63 and a truck bomb attack on a US marine base that left 241 American marines dead. Directly after, congress didn’t only refuse to condemn Israel, they voted to give Israel an additional $250 million against then-President Reagan’s wishes. Secretary of State George Schultz at the time said that this just further proves the “leverage Israel has over our congress.”
Six Day War - The Six Day War, which the US strongly discouraged, required a rearm supply sent to Israel reluctantly, this rearm supply resulted in contention with the Arab world and sent oil prices soaring. The US also had to pay off King Hussein of Jordan to remain on the sidelines.