millim and rimuru were trying to figure out who the master mind is, they already reached the conclusion that ... rimuru and rapheal already has guessed when they were in the meetings prp for the war back than.
i think its already revealed so it shouldnt be spoiler anyway
for the base right they didnt say anything about the distances but since they talked about it and judging the fact that they had to finish that airport to start the whole operation my guess is it at least was close enough for those aicrafts that cannot operate off of carriers to be in range and...
ok lil bro i might be wrong cuz i dont know exact numbers but wasnt some previous chapters all about japan building airport as base operation near that napolian country to lunch an atk at it cuz it was too far the fighter jets probably took off from aircraft carrier (japan have 2 rn) and troops...
Exactly bro every single character only exist for the sole reason to show how strong MC is or react to his power and its rly boring cause everyone besides him is useless it would help if there was good world build but theres non here, and ofc he would reject the rank up (who would expect that)...