Israel has declared a state of emergency immediately after launching an airstrike on Iran, anticipating potential retaliation. Defense Minister Israel Katz made the announcement, warning that Iran could launch a counterattack on Israeli soil at any moment. The strike occurred while most Israelis were asleep. According to a BBC correspondent in Jerusalem, residents were jolted awake by loud sirens and emergency alerts on their phones, signaling the high tension and preparedness across the country in response to possible Iranian retaliation.