Tehran has threatened to retaliate for Israeli attack on Iranian diplomatic building in Syria
The U.S. rushed warships into position to protect Israel and American forces in the region, hoping to head off a direct attack from Iran on Israel that could come as soon as Friday or Saturday.
The moves by the U.S. that are part of an effort to avoid a wider conflict in the Middle East came after a warning from a person familiar with the matter about the timing and location of the potential Iranian attack. A person briefed by the Iranian leadership, however, said that while plans to attack are being discussed, no final decision has been made.
https://www.wsj.com/world/middle-east/iranian-attack-expected-on-israel-in-next-two-days-42b0537c