The outcome of the Ukraine war is arguably the most immediate key to our security in the UK, and if the fighting ends our Armed Forces may be sent to Ukraine to secure not just its future but also ours.
At the same time the Chief of Defence Staff has warned we all need to be prepared for the possibility of war coming to the UK.
So what kind of year does this set out for Britain’s servicemen and women?
Former Army Officer Dominic Nicholls, now Associate Editor for Defence at The Telegraph, explains why they may be facing their biggest ask since the Falklands War.