Lebanon–Syria border

The Lebanese border forms a salient to include the villages of Karha and Knaisse Akkar in the north-east of Akkar District, just west of the Syrian Lake Homs, before turning to the south-east via a series of irregular lines, cutting across the Orontes (at 34°27′18″N 36°29′24″E / 34.455°N 36.490°E / 34.455; 36.490) and the trans-Beqaa road between Qaa and Al-Qusayr (at 34°25′18″N 36°32′36″E / 34.4217°N 36.5433°E / 34.4217; 36.5433), reaching the Anti-Lebanon Mountains at about 34°13′N 36°36′E / 34.22°N 36.60°E / 34.22; 36.60.

The border then turns towards the south-west, generally following the Anti-Lebanon Mountains via a series of irregular lines, until reaching Mount Hermon.

The precise location of the Lebanese–Israeli–Syrian tripoint is unclear due to Israel's occupation of the Golan Heights stemming from the 1967 Six-Day War.

However, as a result of the secret 1916 Anglo-French Sykes-Picot Agreement Britain and France split the Ottoman domains between them, with Syria and Lebanon falling under a French mandate.

[5] The process leading to the precise delineation of the frontier is unclear, though it appears to have been based on a map stemming from the 1860s French expedition to the region which was championed by Lebanese nationalist Bulus Nujaym.