Special edition

Blue Ensign of South Africa (1910-1912)
+
United States of America (1861-1863)
=
United Ensign of South Africa:

Mongolia (🇲🇳)
+
Bulgaria (🇧🇬)
=
Mongoria:

Special edition

Republic of the Rif
+
French Sudan (1958-1959)
=
Republic Sudan:

Martinique (🇲🇶)
+
Antarctica (🇦🇶)
=
Antarctirtinique:

Special edition

Confederate States of America (1863-1865)
+
Southern African Development Community
=
Confederate African Development Community:

Special edition

People's Republic of Kampuchea
+
Empire of China (1915-1916)
=
Empire Republic of Kampuchea:

Paraguay (🇵🇾)
+
Brazil (🇧🇷)
=
Braguay:

Special edition

Gagauz people
+
Ukrainian People's Republic (non-official,1917)
=
Ukrainian people:

Lao People's Democratic Republic (🇱🇦)
+
Latvia (🇱🇻)
=
Lao People's Democratic Latvia:

Special edition

Quebec
+
State of Cambodia
=
State of Quebec:

Nigeria (🇳🇬)
+
Zambia (🇿🇲)
=
Nigembia:

Special edition

Sultanate of Mataram
+
Turkish Republic of Northern Cyprus
=
Sultanate Republic of Northern Cyprus:

State of Palestine (🇵🇸)
+
Azerbaijan (🇦🇿)
=
State of Azerbaijan:

Special edition

Russian Soviet Federative Socialist Republic
+
Goliad
=
Russian Soviet Federative Socialist Goliad:

Puerto Rico (🇵🇷)
+
Peru (🇵🇪)
=
Puerto Peru:

Special edition

Tuvan People's Republic (1930)
+
Italy (2003-2006)
=
Tuvan People's Italy:

Nicaragua (🇳🇮)
+
Nepal (🇳🇵)
=
Neparagua:

Special edition

Turkic Council
+
Kyrgyz Soviet Socialist Republic
=
Turkic Soviet Socialist Republic:

Norfolk Island (🇳🇫)
+
Réunion (🇷🇪)
=
Norfolk Réunion:

Special edition

Mapuches
+
Georgia (1918-1921)
=
Mapurgia: