elements. more troops, more helicopters to try to playing big a offensive their. so having mariupol would not only allow the russians geographic, southern geographic place to launch operations in the donbas but it would free up battalion tactical groups, several of them that they have dedicated to mariupol. they could move forth to reinforce forces there. so you can understand, looking at the map, why the russians are fighting so hard for mariupol. you mentioned the donbas. we just heard from president sc zelenskyy that the fighting has begun. what can you tell us? there s been fighting there for eight years, certainly since the beginning of this invasion. the russians and ukrainians. this is part of the country where terrain, they re both familiar with. they ve been fighting there for a long time. again, we ve seen the russians reinforce their forces there. they ve added some battalion tactical groups into the region.