Wisconsin, as flagship, Pacific Squadron, with Rear Admiral Silas Casey embarked, arrived at Panama, Colombia,
on 30 September 1902, to protect American interests and to preserve the
integrity of transit across the isthmus. Casey offered his services as
a mediator in the crisis that had lasted for three years and invited
leaders of both factions, conservatives and liberals, to meet on board Wisconsin.
Over succeeding weeks, through October, and into November, prolonged
negotiations ensued. Ultimately, however, the warring sides came to an
agreement, and signed a treaty on 21 November 1902. The accord came to
be honored, in Colombian circles, as "The Peace of Wisconsin." When Rear Admiral Henry Glass, Admiral Casey's successor as Commander in Chief, Pacific Squadron, wrote his report to the Secretary of the Navy
for fiscal year 1903, he lauded his predecessor's diplomatic services
during the Panama crisis. "The final settlement of the revolutionary
disturbance," Glass wrote approvingly, "was largely due to his efforts."
Her task completed, the battleship departed Panama's waters on 22
November and arrived at San Francisco on 6 December to prepare for
gunnery exercises. Four days later, Rear Admiral Casey shifted his flag
to the armored cruiser New York, thus releasing Wisconsin
from flagship duty for the Pacific Squadron. The battleship
consequently carried out her firings until 17 December, when she sailed
for Bremerton. reaching the Puget Sound Navy Yard five days before
Christmas of 1902, Wisconsin then underwent repairs and alterations until 19 May 1903, when she sailed for the Asiatic Station.
Proceeding via Honolulu, Wisconsin arrived at Yokohama, Japan, on 12 June, with Rear Admiral Yates Stirling embarked; three days later, Rear Admiral Stirling exchanged flagships with Rear Admiral P. H. Cooper who broke his two-starred flag at Wisconsin's main as Commander of the Asiatic Fleet's Northern Squadron while Admiral Stirling hoisted his in the tender Rainbow.
Wisconsin operated in the Far East, with the Asiatic Fleet,
over the next three years before she returned to the United States in
the autumn of 1906. She followed a normal routine of operations in the
northern latitudes of the station -- China and Japan -- in the summer
months, because of the oppressive heat of the Philippine Islands that time of year, but in the Philippine Archipelago in the winter. She touched at ports in Japan and China including Kobe, Yokohama, Nagasaki, and Yokoska; Amoy, Shanghai, Chefoo, Nanking, and Taku. In addition, she cruised the Yangtze River as far as Nanking, the Inland Sea, and Nimrod Sound.
The battleship conducted assigned fleet maneuvers and exercises off the
Chinese and Philippine coasts intervening those evolutions with regular
periods of in-port upkeep and repairs. During that time, she served as
Asiatic Fleet flagship, wearing the flag of Rear Admiral Cooper.
The battleship departed Yokohama on 20 September and, after calling
at Honolulu en route between 3 October and 8 October, arrived at San
Francisco on 18 October. After seven days stay at that port, she headed
up the west coast and reached the Puget Sound Navy Yard on 28 October.
She was decommissioned there on 16 November 1906.