Israel and the United States are taking heightened security measures in response to potential threats from Iran and Hezbollah. Israel has placed its military on high alert after observing preparations for possible attacks, while the U.S. is deploying additional military assets to the Middle East, including a guided-missile submarine and accelerating the arrival of an aircraft carrier. These actions come in the wake of recent assassinations of militant leaders in Tehran and Beirut, which have escalated tensions in the region. Both Israeli and U.S. officials are closely monitoring the situation, emphasizing readiness and vigilance without inciting panic.