There are many countries, so you can use Ctrl+F to find them quickly.
ALB: Albania
Anhalt
ARG: Argentina
Arm: Armenia
ATJ: Aceh
Australia: Austria
AZB: Azerbaijan
Bad news: Baden
BAV: Bavaria
Bell: Belgium
BOH: Bohemia-Moravia
BOL: Bolivia
Bos: Bosnia and Herzegovina
Bra: Brunswick
BRE: Bremen
BRZ: Brazil
BUL: Bulgaria
Cat: Catalonia
Cherokee
Chile: Chile
CLM: Colombia
COB: Saxony-Coburg-Gotha
COS: Costa Rica
Crete
CRI: Crimea
CRO: Croatia
CYP: Cyprus
CZH: Czechoslovakia
Denmark
DES: Desailet
DZG: Danzig
European monetary unit: Ecuador
ELS: El Salvador
Eng: Britain
Eastern time: Estonia
Finland
Flanders: Flanders
France: France
FRM: Frankfurt am Main
Location: Georgia
Germany: Germany
Greece: Greece
Melon: Guatemala
Guangxi: Guangxi
Ham: Hamburg.
Han: Hanover
HDJ: sinology
HEK: Hesse Castle
Hesse-darmstadt
HOL: Hostan
HON: Honduras
Hungary
ionian islands
Ireland
Iraq: Iraq
Italy: Italy
KRA: Krakow
KUK: Austro-Hungarian Empire
Lat: Latvia
LIP: Lippe-Detmold
LIT: Lithuania
Lome: Lombardy
LUA: Luang Prabang
LUB: Lubeck.
LUC: Luca
Luxembourg
Manhattan commune
MCK: Manchuria
MEC: mecklenburg
May: Saxony-Meningen
MGL: Mongolia
MOD: modena
Moore: Moldova
Mongolia: Montenegro
MTC: metti alliance
Mugs: Muggles.
NAL: Natalia
NAS: Nassau
Net: Netherlands
New: Newfoundland
NGF: North German Federation
NIC: Nicaragua
NOR: Norway
Old: oldenburg
OLA: Orange.
PAP: papal state
PAR: Palma
PEU: Peru
PHI: Philippines
PNM: Panama
Poland
PRG: Paraguay
Prussia
QUE: Quebec
The rebels
ROM: Romania
RUS: Russia
Root: Rusenia
SAR: kingdom of Sardinia
Saxophone: Saxony
SCA: Scandinavia
School: Schleswig
SER: Serbia
SGF: Federal Republic of South Germany
Two Sicilians.
SIE: Transylvania
SLO: Slovenia
SLV: Slovakia
Sweden: Sweden
SWI: Switzerland
SXI: Jin system
TRE: Trieste
TRN: Transvaal
Tunisia
TUR: Ottoman Empire
TUS: Tuscany
UCA: Central American Federation
UKR: Ukraine
URU: Uruguay
America America
Text: Venice
VNZ: Venezuela
Wall: Wallachia.
Wei: Saxony-Weimar
WIA: Vientiane
WLL: Walloon
WUR: Wü rttemberg
XBI: Northwest III
Xin: Xinjiang
Yunnan Yunnan
YUG: Yugoslavia
Zanzibar: Sanjiba