I see so many posts of the Union Jack without one of the countries

Top 9 countries where British Accent is the most popular: -, by Nav

It is time for Poland to lift their block on the post-Cotonou treaty – Euractiv

Atlantic Canadian Flag Ideas (feedback very much wanted) : r

Union Jack - Wikipedia

Red Ensign - Wikipedia

Map of Goguryeo in late 6th century- mid 7th century according to

Flag of the United Kingdom - Wikipedia

A proposal of the Union Jack without Scotland's St. Andrew's Cross. : r/vexillology

Union Jack Flag of the United Kingdom Stock Vector - Illustration

The New Union Flag

I made a few flags for some fictional countries that i made with a