I think he just wants to focus back on Africa since he's deemed a criminal organization since end of January. The Ukraine war won't last, there's a counter off

I think he just wants to focus back on Africa since he's deemed a criminal organization since end of January. The Ukraine war won't last, there's a counter offensive supposedly in the making and he doesn't want to lose face too much. If the counter offensive is successful, he could claim it was because he wasn't there. And it wouldn't have happened if he had received the resources he wanted. He is just waiting to retreat before the counter offensive actually starts. What seems to be significant is the short timeline ( days not weeks). He knows that won't be possible + in a video of him, he mentioned he didn't send the letter "yet", which is counter intuitive according the claimed urgency.