There were no Konoha flags outside the Stone Warehouse.
Nor was there an Uchiha Clan Crest.
The Land of Rivers had erected three stone pillars of equal height at the entrance, recording the Authorization Seals of their own country, Konoha, and the Masked Man respectively.
If any party's seal went dark, the Medical District would immediately close.
The participants completed their final check a hundred paces away.
Konoha's contingent consisted only of Kakashi, Shisui, Itachi, Gen, one Hyuga jonin, two medical ninja, and two sealing ninja.
The Land of Rivers sent three witnesses and a guard unit that would not enter the warehouse.
The Masked Man's side registered two White Zetsu, who could only remain in the Transparent Isolation Chamber.
The Root observer Danzo had requested permission to include was not approved.
The perimeter inspection also intercepted two unregistered porters from the Land of Rivers.
Their identity documents were genuine, but their shadows briefly moved in the opposite direction as they crossed the heated stone slabs.
Itachi did not attack on the spot.
The Land of Rivers first contacted the actual people named in the documents and confirmed that both porters were in the capital and had accepted no assignment at the Stone Warehouse.
With their disguises exposed, the White Zetsu slipped out of their clothes and tried to burrow into nearby cracks in the rock.
The guards scattered finely ground metal sand.
The grains vibrated with any underground movement. Before the two White Zetsu could approach the warehouse walls, the perimeter seals forced them into separate stone cages.
The Land of Rivers retained the evidence of the attack. Konoha could not use it to increase the number of people inside the warehouse.
He remained outside the Land of Rivers' border. Any approach would be recorded by all three parties