"The siege goes well. With our continued barrage, their shield should be down in three months." "But we've been here a month already." "Yes, sir. We're right on schedule."
"So, I assume the plan is to crawl through the sewer, work our way to the shield generator, fight our way through the defenses, blow up the generator, knocking out the shield and all our troops swarm in and overwhelm the enemy." "Yup, let's go!"
One month into the siege, a jetpack-equipped Commander Cody descended to the entrance of the ramshackle shelter Kenobi was resting in and informed the general that they were on schedule and under their continued bombardment of the city, the enemy shields would be overwhelmed in a further three months. After Cody departed, Skywalker arrived with a meal he had obtained from the enemy camp after discovering an underground entrance into the city, running through the sewers beneath the protective shield.[1]
While their clonetroopers continued their bombardment of the shield above ground, the two Jedi made their way through the sewers and into the underground levels of the city. From there, they made their way to the shield generator chamber and succeeded in destroying the generator with the use of explosives. With the shield down, Skywalker and Kenobi exited the city, leaving Commander Cody to lead a full scale attack including Clone jet troopers and All Terrain Recon Transports with Aggressive ReConnaissance-170 starfighters providing aerial support. The assault led to a Republic victory over the Separatist forces.[1]