Callsign Viking

Callsign VIKING

The mission doesn't officially exist.

Neither do the men sent to carry it out.

As a major offensive gathers momentum in war-torn Ukraine, a twelve-man British SAS reconnaissance team is inserted deep behind enemy lines on one of the most dangerous intelligence missions imaginable. Their objective is simple: watch, listen, survive-and uncover the hidden command structure driving the campaign.

Led by the calm and experienced Major Daniel Mercer, Callsign VIKING spends weeks operating in the shadows, navigating frozen forests, abandoned industrial complexes, underground command bunkers and concealed logistics hubs. Every observation could change the course of the war. Every mistake could expose them.

Facing relentless drone surveillance, enemy search teams and the constant threat of discovery, the patrol must rely on patience, discipline and absolute trust in one another. As the offensive unfolds, they uncover a vast network of mobile headquarters, hidden communications systems, covert supply routes and sophisticated deception plans, revealing that modern warfare is won as much through information as firepower.

Packed with authentic military atmosphere, tense reconnaissance missions, gripping suspense and believable characters, Callsign VIKING is a fast-paced military thriller that explores the unseen side of modern conflict-the quiet professionals whose greatest victories are never reported.

Perfect for readers who enjoy realistic special forces fiction, covert operations, military intelligence and high-stakes suspense, this is a story of courage, teamwork and sacrifice where the deadliest weapon is knowledge, and the greatest heroes are the men history never knows.