It creates a functional or scenic border crossing between Israel and Lebanon, which is not part of the base game map.
This specific V4.0 version is tailored for game version 1.40, which introduced significant lighting and graphical updates to the game. ISRAEL LEBANON OPEN BORDER V4.0 1.40
Disclaimer: As this is a third-party modification, it is not an official feature from the game developers (SCS Software). It creates a functional or scenic border crossing