Even planning a non-combatant evacuation operation is politically and diplomatically fraught – the signals it sends to a host country are rarely desirable. Yet somehow embassy staff around the world build contingencies for the unexpected. And they are – sometimes – needed, as we have seen over the past two weeks in Sudan. Peter Talks to Ewan Lawson, a former NEO planner for the British military and Senior Associate Fellow at RUSI, about the realities of this type of operation, about the decision-making and trust placed in people, and about the unsung heroes who rarely get recognised.