[en] A high-power 20-channel neodymium-glass laser is described (energy -- 1 kj, pulse duration 2 nsec). It is part of the ''Flora'' facility intended for combined simultaneous heating of a plasma by powerful laser radiation (PLR) and by a relativistic electron beam (REB) produced in a facility of the ''plasma focus'' type. The paper deals theoretically with the processes of combined interaction of PLR and REB with a current plasma and a solid target