Battle for the Bosporus

Battle for the Bosporus

---

Type

Country pack

---

Release date / Patch

2020-10-15 / 1.10

Battle for the Bosporus is the third country pack for Hearts of Iron IV. Announced on 2020-09-23, and was released on 2020-10-15. The patch coincides with patch 1.10 (aka "Collie")

Expansion features

Battle for the Bosporus adds dedicated national focus trees to the minor powers around the Black Sea and the Aegean. Bulgaria, Greece and Turkey can each chart unique historical and alternate history paths as they resist efforts by the major powers to dominate the strategic sea-lanes of the Bosporus and Dardanelles.

Features include:

• National Focus Tree for  Bulgaria: Balance the factions in a divided land or reclaim territory lost in 1919. Follow the historical alliance with Germany or resist the German pressures on Tsar Boris, standing up for a free Bulgaria.
• National Focus Tree for  Greece: Riven by political division, Greek neutrality is maintained by the controversial Metaxas. Build a strong relationship with the Allies under the guidance of King George II, follow arch-conservatives into fascism or restore the glories of Greek Empire in the east.
• National Focus Tree for  Turkey: Robbed of its empire in the last war, what future is there for Turkey in a new one? Continue or halt the reforms of Kemalism, stand as the protector of the Balkans in a new regional faction, restore the Sultan to the throne or found a new Islamic state.
• New Music Tracks.
• New Models: 3D Unit Models for Balkan and Turkish armies.
• Unique voiceovers for  Bulgaria,  Greece and  Turkey.

Videos

Cinematic trailers

Battle for the Bosporus release trailer. The strategic waters of the Black and Aegean Seas are vital targets for the major powers. Experience three new National Focus trees (Bulgaria, Greece and Turkey) in this new country pack for Hearts of Iron IV.

Battle for the Bosporus announcement trailer. How will you steer your nation through the straits of crisis? Explore new historical challenges and alternate histories in the Battle for the Bosporus Country Pack.

Video diaries

Battle for the Bosporus - Greece. Robert Dotson, HoI4's game designer, on the new flavour content coming for Greece.

Battle for the Bosporus - Bulgaria. Robert Dotson, HoI4's game designer, on the new flavour content coming for Bulgaria.

Battle for the Bosporus - Turkey. Robert Dotson, HoI4's game designer, on the new flavour content coming for Turkey.

Devs play

Battle for the Bosporus - Greece. Daniel "Da9L" Sjöberg and Busby with a first look at Greece's new content.

Battle for the Bosporus - Bulgaria. Daniel "Da9L" Sjöberg and Mano de Zombi with a first look at Bulgaria's new content.

Battle for the Bosporus - Turkey. Daniel "Da9L" Sjöberg and Busby with a first look at Turkey's new content.

Developer diaries

Main article: Developer diaries

All developer diaries about the Battle for the Bosporus country pack and patch 1.10 (aka Collie).

Patch 1.10 (Collie)

No.	Title and Link	Description	Date
9	5th Anniversary	Hearts of Iron IV 5th Anniversary and patch	2021-06-02
8	New year update	Statistics after Battle for the Bosporus, general view on 2021.	2021-01-20
7	Telemetry	Short description of Telemetry of how player behaviour changed since the DLC release	2020-10-21
6	1.10 ‘Collie’	Full changelog	2020-10-14
5	Art and Achievements	New art, music, and achievements.	2020-10-07
4	Yugoslavia and Romania	Description of Yugoslav focus tree changes and briefly talking about pathways and talking about minor changes to Romania	2020-09-30
3	Turkey	Description of Turkish focus tree and briefly talking about pathways.	2020-09-23
2	Bulgaria	Description of Bulgarian focus tree and briefly talking about pathways.	2020-09-16
1	Greece	Description of Greek focus tree and briefly talking about pathways.	2020-09-09