U.S. President Donald Trump has given the impression that he is not up to speed on who's fighting whom in Lebanon.

Surveying the rocky no-man's land on Lebanon's eastern border with Syria, Hizbullah fighters recalled the "difficult" battle they fought to recapture much of the terrain from militants.

Reinforcements from the army's elite units were pouring into the Bekaa region on Wednesday for a possible operation against the jihadist Islamic State group in the outskirts of the border towns of al-Qaa and Ras Baalbek.

A patrol from the Internal Security Forces Intelligence Branch raided Wednesday a building in Tripoli's Abi Samra area in which it seized arms, shells and rockets, media reports said.

U.S. Ambassador to the United Nations Nikki Haley has urged the U.N. Security Council to consider Hizbullah "a destructive terrorist force" and "a major obstacle to peace" that is "dedicated to the destruction of Israel."

She said the council must get serious about enforcing its resolutions that involve Hizbullah and its backer Iran, including many calling on the armed group to disarm.

Hizbullah fired rockets and artillery Wednesday afternoon at al-Nusra Front's posts in Arsal's Wadi Hmayyed area and blew up Nusra “operations rooms” in the town's outskirts, following cautious calm in the morning.

Prime Minister Saad Hariri stressed that the government’s main goal is to strengthen the State's institution and its military and security forces in order to extend their control over the entire Lebanese territory.

The United States announced that it is providing more than $140 million in additional humanitarian assistance in Lebanon to address the urgent needs of refugees from Syria and those of Lebanese host communities, according to a U.S. State Department fact sheet released by the U.S. Embassy in Beirut.

The United Nations Special Coordinator for Lebanon, Sigrid Kaag and the Director of UNRWA in Lebanon, Claudio Cordone, visited the Palestine refugee camp of Ain el-Hilweh, UNRWA said in a statement on Wednesday.

They met on Tuesday with representatives and residents of the camp, including women and youth groups, and visited UNRWA installations and other areas in the camp.

The “second phase” of Hizbullah's offensive against al-Nusra Front militants in the outskirts of Arsal will probably “end at dawn on Sunday,” paving way for the “third phase which opens channels of negotiations to secure the withdrawal of insurgents into Syria,” al-Joumhouria daily reported on Wednesday.