Siege of Osgiliath

The Sige of Osgiliath
The Sige of Osgiliath was a battle between the hostes of Mordor a Gondor during the War of the Last Alliance.

Prelude
Soon after conquest of Minas Ithil the Witch King of Angmar took control of the fort, having collected a huge army of orcs and Evil Men he prepared to attack Osgiliath

Background
When the Witch King fell on Osgiliath, Isildur as best he could be organized and prepared a desperate defense, reflecting catapults Isildur did pay dearly for the crossing of Anduin to the forces of Mordor, but could not hold the Legions of Mordor and forced to retire. The main contingent attacked Osgiliath East, while two other contingent vadeavn the river to the north and south and attack Osgiliath West. Isildur had to leave Osgiliath East to defend the West but whe he cross the river saw could not contain both armies ,so he run to  Minas Anor as quicker possible to prepare for the attack