The Boxer Rebellion
In 1900 a contingent of about 20,000 Japanese soldiers went to China to subdue the
Boxers, a violent, anti-foreigner group. Seven other nations sent troops as well. In
modern Japanese this incident is called
Giwadan Undo, but I'm not sure when this
phrase was decided upon.

The phrase used on the attached bar of the official Japanese Boxer Rebellion medal
is 'Shinkoku Jihen', which translates into China Incident. The cup below has a similar
phrase: 'North China Incident' and is dated Meiji 33 [1900], the year of the Boxer
Rebellion.

When I enter the phrase 'North China Incident' into the Japanese Wikipedia, it
transfers automatically to the Boxer Rebellion page. The kanji for China here is the old
one, replaced around the end of teh Meiji era (1912).

The medal is quite rare, so I imagine cups from this incident are rarer. Since it
appears that there is no set phrase for the Boxer Rebellion, one should look for the
following: The old kanji for China and the date Meiji 33. If these both appear on a cup,
you can be fairly certain that it is a Boxer Rebellion item.
Meiji 33 [1900]
4 kanji, read from right to left. The first two are Hokushin
(North China) and the last two are Jihen (Incident).
Hand-painted crane and banner, within which is inscribed 'In Honor of Good
Deeds Commemorative.' On the reverse is inscribed: 'Meiji 33 [1900] May 10th,
Infantry 42nd Regiment, 1st Battalion.'

The 42nd Regiment was in the 5th Division and, according to Wikipedia, "The
5th Division was formed in Hiroshima in January 1871 as the Hiroshima
Garrison, one of six regional commands created in the fledgling Imperial
Japanese Army...The six regional commands were transformed into divisions
under the army reorganization of 14 May 1888. As one of the oldest Divisions in
the Imperial Japanese Army, the 5th Division saw combat in the First
Sino-Japanese War. Elements of the 5th Division were the first Japanese
forces to land in Korea ...and participated in the invasion of the Liaodong
Peninsula in China. It was the main Japanese element in the multi-national
coalition during the Boxer Rebellion, and received praise from foreign
observers for its bravery, professionalism and discipline."

Thanks for the help, Curt.
Gold gilt kanji that read 'In Celebration of Victorious Return'
and on the reverse 'Meiji 34 [1901]'.

Troops that served in suppression of the Boxer Rebellion
were returning to Japan in 1901. This cup could have been
for one of those soldiers.
The reverse has this: 'China, Stationed in
Peking, Infantry Takaura Tokuhei'
The kanji read 'Alliance Army Commemorative'.
A beautiful lacquered wood cup with the alliance
flags. In the center is the Imperial mirror, I think.

Thanks for the picture, Carlo.
The pattern has gold gilt blossoms and a Rising Sun, along
with wavy lines that symbolize water. There is a poem here
but I cannot read it.
Inscribed on the reverse 'Meiji 33 [1900] China Incident' and
what follows is a literal translation of the rest: 'Healing the
Pain of War Veterans' Committee, Army Soldier Sumino
Yuuhei'.
China Incident (Shinkoku jihen), using the old kanji for China
Meiji 33 [1900], using the old kanji for the numbers
The two large gold gilt kanji in the center that read 'Loyalty and Bravery'.

Inscribed in the bullet shape '[?] North China Incident, War Dead & Death from Illness, Living
Spirits.'The kanji here is the old kanji for China, and the phrase 'North China Incident' with this
kanji usually refers to the
Boxer Rebellion.

To the left are two other groupings of kanji, both intended to mimic the appearance of a stamp.
The one above looks like it's a name--perhaps the artist's name. The one below says
'Lacquered Goods Festival, Commemorative Badge'.
Rare Boxer Rebellion cup with hand-painted flags. Inscribed 'North
China Alliance Army Garrison, Commemorative.'