The Battle for the Bosporus Add-on for Hearts of Iron IV has 20 achievements.
As Yugoslavia or Bulgaria, be at war while both countries are ruled by a child.
As Romania, change sides in the war and capitulate a former ally.
As Peter II of Yugoslavia, overthrow your uncle and become King.
As Yugoslavia, establish the autonomous region of Transylvania and have it own all Romanian cores.
Win the Greek Civil War before 1937.
As Bulgaria, complete the focus The Fate of the Balkans while having 5 or more Balkan puppets.
As Bulgaria capitulate Turkey while also controlling the rest of the Balkans, including Greece.
As Communist Bulgaria, form the United Balkan Federation and own all Balkan states as cores.
As Greece, liberate Albania while being at war with Italy.
As Greece, fulfill the Megali Idea and then form Greater Greece.
As Greece, capture Istanbul and rename it to Constantinople.
As Greece or Bulgaria, own both sides of the Bosporus. As Turkey, subjugate both Greece & Bulgaria.
Restore the Ottoman Sultanate.
As non-aligned Turkey, have zero negative state modifiers.
As Finland, defeat the Soviet Union without joining a faction.
As Kurdistan, hold all of your cores.
Unite Arabia with thirty camelry divisions.
As Turkey, be in a faction with Germany and Austria-Hungary.
Restore Byzantium and have Italy, Romania, and Russia as subjects.
As the Ottoman Empire, hold the capitals of France, the United Kingdom, Italy, and Japan.