Here we summarise considerations we deem are important for rescue services in relation to an attack with nuclear weapons:  After a nuclear explosion, situational awareness will be very scant. It will be hard to assess the effects, and the presence of radioactive fallout will not be known. Early estimates of radiation dose may be subject to large errors.  Explosions in or near urban areas can be expected to cause dead and wounded in the thousands from immediate effects.  Extensive collapsing of buildings will hamper mobility. Similarly, other infrastructure, like communication towers, power transmission lines and bridges may be damaged or destroyed.  Integral ability to indicate and measure radioactive dose is essential in order to be able to act in the area.  The rescue service closest to the area of attack may be directly affected, and forced to prioritise self-protection, while resources approaching from outside will have to work their way into the disaster area.  Fallout in the wind direction roughly propagates with the wind speed.  Radiation dose rates can vary considerably, depending on where and how the measurement is performed.  Close attention must be kept regarding current dose rate, and maximum staying time.  The residual radiation may be insignificant for an air burst, but the immediate effects will in general be more extensive than for a ground burst. In conclusion: The situation will be chaotic with a large number of casualties, but other aspects are similar to situations the rescue services are familiar with encountering. The main differences are the scale, and the added difficulties connected with acting in a potentially life-threatening radiation environment where individual radiation protection is key.