The Undeclared War

The Undeclared War
GenreThriller
Created byPeter Kosminsky
Written byPeter Kosminsky
Starring
Theme music composerDebbie Wiseman
ComposerDebbie Wiseman
Country of originUnited Kingdom
Original languages
  • English
  • Russian
No. of seasons1
No. of episodes6
Production
Executive producers
ProducerRobert Jones
CinematographyGavin Finney
EditorDavid Blackmore
Production companiesPlayground Entertainment
Stonehenge Films
Universal International Studios
Original release
NetworkChannel 4
Peacock
Release30 June 2022 (2022-06-30) –
present
Infobox instructions (only shown in preview)

The Undeclared War is a British near-future thriller television series. The series is written by Peter Kosminsky, and follows two main characters, Saara Parvin in the UK and Vadim Trusov in Russia, during a cyber and misinformation attack upon the UK.. The first series aired from 30 June 2022 on Channel 4. Channel 4 announced on 12 February 2025 that a second series consisting of six episodes would be produced.