I think he just wants to focus back on Africa since he's deemed a criminal organization since end of January.<p>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.<p>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.<p>He is just waiting to retreat before the counter offensive actually starts.<p>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.