Russia attacks the UK, panic ensues and government ministers and military chiefs assemble in the war room - what happens next?
The Wargame, a new podcast series by Sky News and Tortoise Media, takes you into the heart of this imaginary crisis, pitting a fictional British government played by ex-top politicians against an imagined Kremlin.
And here's your chance to put your questions to the team behind the podcast.
Join a live Q&A coinciding with the launch on Tuesday with Sky News' security and defence editor Deborah Haynes, who wrote and presents the podcast, and Sir Richard Barrons, a leader of the recent defence review who plays the role of chief of the defence staff, the UK's top military officer.
Our lead politics presenter Sophy Ridge will put your questions to them on anything from the UK's preparedness for a hostile attack to the making of the podcast
Submit yours in the box at the top of the page to join in.