The fortification of Dwaraka

Salwa, stationing his forces in array, besieged that city around and above. 

And stationing himself in the upper regions, the king began his fight with the city. And that encounter commenced with a thick shower of weapons from all sides. The city at that time was well-fortified on all sides, according to the science (of fortification), with pennons, and arches, and combatants, and walls and turrets, and engines, and miners, and streets barricaded with spiked wood-works and towers and edifices with gate-ways well-filled with provisions, and engines for hurling burning brands and fires, and vessels, of deer-skins (for carrying water), and trumpets, tabors, and drums, lances and forks, and Sataghnis, and plough-shares, rockets, balls of stone and battle-axes and other weapons and shield embossed with iron, and engines for hurling balls and bullets and hot liquids! And the city was also well-defended by numerous cars. Yadava heroes (Gada, Samva, Uddhava) placing themselves on commanding posts, aided by cavalry and standard-bearers, began to defend the town.