Israel and Iran have been carrying on for years, with mutual attacks without claims in countries such as Syria, Lebanon and Iraq. On April 1, an Israeli bombing killed one of Iran's most prominent military commanders in Syria.

Since then, the escalation between both countries has been only verbal with mutual threats. Iran has the military capacity to carry out such an attack, which even one of its allies, Russia, appears to fear, writes El PAÍS' John Defterios. He sees in all these diatribes “a game of deterrence between two States that have been at war for a long time,” Defterio says.. The only European company that flies to Tehran, Lufthansa, has suspended its flights and, on Wednesday, US intelligence sources told Bloomberg that they assume that Iran will attack Israeli military and government targets with high-precision missiles and drones. Israel has committed different actions, more than 40, recorded by the United States, against Iranian interests within Iran and elsewhere as well, including the murder of several nuclear scientists.