French President Emmanuel Macron who visited Israel on Tuesday said Hezbollah in Lebanon, Iran itself and the Houtis in Yemen, among others, must not take the risk of opening a new front.

Macron said he warned “potential terrorist groups" to stay out of the fight, and “clearly warned Hezbollah with direct messages.”

On October 23, 1983, attacks on French and U.S. troops in Lebanon's capital Beirut left hundreds dead -- 40 years on, survivors are horrified at today's upsurge in violence.

Israel on Tuesday said a guided missile was fired from Lebanon at the northern Israeli region of the Galilee, as an Israeli drone bombed a car near Lebanon’s border, reportedly foiling an attack.

Forty years after one of the deadliest attacks against U.S. troops in the Middle East, some warn that Washington could be sliding toward a new conflict in the region.

On Oct. 23, 1983, a suicide bomber hit an American military barracks at Beirut International Airport, killing 241 U.S. service members, most of them Marines – still the deadliest attack on Marines since the World War II Battle of Iwo Jima. A near-simultaneous attack on French forces killed 58 paratroopers.

Caretaker Prime Minister Najib Mikati made a surprise visit Tuesday to restive south Lebanon, whose border area has been witnessing deadly clashes between Israel and Hezbollah for the past 16 days amid Israel’s war on Hamas in the Gaza Strip.

“We came to our dear South -- which is paying the price of its defense of the entire country in the face of a usurper and merciless entity -- to stress Lebanon’s respect for the international legitimacy resolutions and commitment to U.N. Security Council Resolution 1701,” Mikati said during the visit.

Free Patriotic Movement chief Jebran Bassil met Tuesday with Parliament Speaker Nabih Berri in Ain el-Tineh as part of a tour over the military developments in south Lebanon and Gaza.

"It's time for accord, not for confrontation," Bassil said after the meeting, as he called for a swift election of a president.

Cross-border exchanges between Israel and Hezbollah have been gaining pace. But does the powerful Lebanese movement really seek to enter open conflict with Israel?

Hamas militants stormed into Israel from the Gaza Strip on October 7, killing at least 1,400 people, according to Israeli officials.

U.S. Ambassador to Lebanon Dorothy Shea said Monday that Washington and “the Lebanese people” reject “the threats of some to drag Lebanon into a new war,” in an apparent reference to Hezbollah’s attacks against Israeli forces on Lebanon’s border.

”We are … here to say unequivocally that our commitment to the Lebanese people is so much stronger than any cowardly act of violence or terrorism,” Shea said at a ceremony marking the 40th anniversary of the 1983 bombing of the U.S. Marine Corps Barracks in Beirut, in which a suicide bomber killed 241 U.S. servicemembers.

More than 19,000 people have been displaced in Lebanon amid an uptick in tensions between Israel and Hezbollah at the country's southern border, figures released Monday by a United Nations agency showed.

"An increase in cross-border incidents" has resulted in the displacement of 19,646 people in Lebanon, "both within the south and elsewhere within the country", said the International Organization for Migration.

The Israeli army shelled Monday the outskirts of the southern Lebanese town of Rmeish, after it claimed having intercepted 2 drones that entered from Lebanon.

Soon afterwards, two anti-tank missiles were fired at an Israeli post in the Galilee, triggering alert sirens in Kiryat Shmona on the border with Lebanon. Israeli media reported three injuries. The Israeli army also said al-Marj military post, which faces the Lebanese town of Markaba, was attacked.