The Kirigakure Ninja didn't occupy the camp. They thoroughly looted it, destroyed everything they could to ensure Konoha couldn't quickly rebuild it, and then withdrew.
Of course, they didn't forget to put on Konoha Ninja vests and forehead protectors before ransacking the surrounding area's wealthy merchants and influential families.
War was expensive. The Daimyo's administration provided only limited funding, and with so many ninja at the Frontline during the war, they couldn't earn money by taking missions. They had no choice but to supplement their income this way.
However, they only targeted the wealthy merchants and influential families. They weren't interested in ordinary people, since there was no profit in it.
As agreed, all the special metals seized during the war, including Chakra Metal, belonged to the Kumogakure force as payment for its support.
The Kirigakure Ninja had no objections. After all, the Kumogakure force were reinforcements, and they'd brought such an impressive force. Without them, Kirigakure couldn't have won this battle—or even fought it.
Not to mention that they'd held back nearly all of Konoha's high-level combatants on the Frontline and temporarily crippled the Hyuga Ninja. Their share of the spoils was only fair.
The allied forces stayed there for three days before finally withdrawing to the Land of Waves.
The rest of the war was straightforward. The two villages' allied forces launched attacks on the wealthy merchants and influential families in the eastern Land of Fire, dressing up as Konoha Ninja every time they went to plunder them.
The Daimyo's administration of the Land of Fire protested vehemently, even sending a formal letter to the Daimyo's administration of the Land of Water.
But the latter ignored them. They'd seen the powerful families of the Land of Lightning seize the Land of the Moon, the Land of Hot Water,