Combat search and rescue (CSAR) is one of the highest-risk missions that exist on the modern battlefield.
The situation is often fluid and dynamic; the “known” information is extremely small and the risk to the rescue force is usually high.
The critical factor to the confidence of the fast-mover pilots flying over denied territory is this: They must trust someone will come for them should things go badly.
Recently, we saw that happen when a Russian Air Force Sukhoi Su-24M “Fencer” was shot down after allegedly violating Turkey’s sovereign airspace. The downed aircraft and a wingman were inside Turkey for a grand total of 17 seconds while flying from east to west at an altitude of 19,000 feet. The aircraft were less than two miles inside Turkey’s southernmost border as they passed through. And while one aircraft veered back to the south, one was engaged by two Block 50 F-16Cs of the Turkish Air Force.
Once the Fencer was stricken and no longer able to fly, both pilots inside ejected. Thus began the Russian Air Force’s attempt to locate and extract their downed airmen.
Combat search and rescue missions are often divided in to two categories: immediate and deliberate. The missions define themselves: In one, a force is immediately dispatched to rescue the downed aviators or isolated personnel. In the other, time is taken to build an intelligence picture, along with a rescue package consisting of ground, rotary-winged, and close air support (CAS) elements, all working in well-planned and organized concert to the goal of repatriating the personnel in question.
The distinction is twofold, and is always chosen based on the risk vs. reward equation.
If the distance is short and the likelihood of capture or injury to the isolated personnel is high, then often the risk of a quick launch mission is validated. However, this risk is high indeed. Without taking the time to build an intelligence picture, to determine the location and condition of the personnel to be rescued, and to leverage a larger force for greater control of the airspace and ground situation, you are launching into a staggering amount of unknowns. In such a case, the mission can go badly in a hurry, as seems to be the case in Syria.
Added into the mix is the complete confusion that is Syria and the surrounding areas at the moment. Two disparate forces are operating across the airspace with limited coordination, and the ground picture is even worse. Syrian Assad loyalists, the Free Syrian Army, and Daesh forces abound, and are often working at cross purposes with all the other forces in play.
Without an easily defined enemy, without clearly defined areas of control or responsibility, and without consistent airborne command and control over the area, the mission launched into a maelstrom of weapons, forces, allegiances, and capabilities. An immediate CSAR mission is already a high-risk job. Into these conditions, the level of risk exceeds easy definition.
To attempt a mission like this is understandable. All of those who have experience in this world have been through the moment in which you're presented withi a mission that, on its face, is guaranteed to be a bad day. What helps is having a solid plan, a force of both air and ground forces that are specifically tasked and trained for this mission. They practice together, they establish standards and common terminology, and they understand the responsibilities and limitations of all the players.
When the call comes, those plans and personnel are launched with the confidence of prior planning, helping to mitigate the world of risks that are out of your control.
What is unknown at the moment is how much was operationally possible for the Russian military in launching a rescue mission for their airmen. While Russian forces are on the ground in Syria, their footprint is small. Their level of preparation, planning, and capability for this contingency is still a mystery.
American doctrine has long included air rescue plans as a matter of course. But the US has also had a great amount of developmental experience operating in denied territory, and that has informed the creation and implementation of that doctrine.
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