Europe 285
275 Hesse Grand Ducal/390 Denmark
MID#194
Started in April 1863. See the narrative in the 255 Germany/390 Denmark dyad dis-
pute list.
280 Mecklenburg Schwerin/300 Austria-Hungary
MID#261
Started in April 1865. See the narrative in the 255 Germany/300 Austria-Hungary dyad
dispute list.
290 Poland/315 Czechoslovakia
MID#1268
Dispute Number: 1268
Date(s): January 23, 1919 to February 3, 1919
Participants: 315 Czechoslovakia/290 Poland
Outcome (and Settlement): Compromise (Negotiated)
Fatalities: Missing
Narrative: This dispute is the Seven Day War between Poland and Czechoslovakia
for Cieszyn Silesia, which both sides claimed after the armistice at the end of World
War I. After the war, the Czechs decided that Cieszyn Silesia was rightfully theirs and
issued an ultimatum to the Poles demanding that they move back to an area around
the Biala River. The Poles refused, and Czech soldiers crossed into the Polish part
of Cieszyn Silesia in an attempt to prevent a Polish election. By January 27, all of
Cieszyn Silesia was occupied by the Czechs without any resistance or fight. They
continued to gain territory in Poland until January 31, when the Polish army finally
stopped the advance, and the Entente pressured the Czechs to stop. The Czech army
withdrew to the new Green Line that was established by an International Commission
Agreement that was based upon the Czechoslovakia-Polish Treaty, signed on Febru-
ary 3, 1919. The territory of Cieszyn Silesia was permanently divided in July 1920 at
the Spa Conference.
Coding changes: End Date changed from February 1, 1919.
MID#1244
Dispute Number: 1244
Date(s): September 21, 1938 to October 2, 1938
Participants: 315 Czechoslovakia/290 Poland