Seizing this long-awaited opportunity, the Ladakhis marched across the border of Guge, overcoming each fortress and embattlement in their path until they reached the capital Tsaparang.
By this time, Guge's economic and political resources were strained.
No reinforcements would be coming as Tsaparang would have to face the invaders on its own.
But taking Tsaparang would not be easy.
The capital's western and southern approaches are sheer vertical walls, virtually attack-proof.
At the summit, the royal palace was protected by a defensive wall running along its parameter.
The only possible approach for the Ladakhi forces was up a gently sloping here on the northeast, but even this route was blocked by a substantial wall.
The Ladakhi armies reached Tsaparang.
They were flushed with victory.
They had conquered all of the satellite fortresses.
They were now primed for the final battle.
How this final battle began is a matter of some uncertainty.
But scholars believe the entrance to the city was stormed by the Ladakhis.