The militias began digging the transit tunnel about four months ago, and it connects the border areas of Syria and Iraq, and weapons and ammunition are transported through it, and inside the tunnel "weapons warehouses and drug storage areas" were also built, the Syrian Observatory reported.
The director of the Syrian Observatory for Human Rights (SOHR), who sits in London and enjoys good sources of information inside Syria, stated that informed sources confirmed to them that the Shia militias loyal to Iran and operating in eastern Syria "have completed the construction of a new crossing that extends through an underground tunnel in the Albu Kamal desert, adjacent to the eastern border, connecting between Iraq and Syria, to avoid drone attacks that follow the movements of weapons and ammunition trucks coming from the east (Tehran). "
The construction of a transit tunnel on the border between 2 countries under Iranian occupation actually began in the border areas between Syria and Lebanon and allowed Hezbollah forces to insert heavy weapon systems and mostly weapons that arrived by land from Iran to northern Lebanon into the strategic weapons depots they were preparing for an all-out war against Israel.
These days, when Israel maintains a land and air blockade of Lebanon in an attempt to prevent renewed supplies to Hezbollah from Iran, Israel routinely attacks official and unofficial border crossings on the border with Syria.