By default, proclaiming Charles III as Emperor is tantamount to indirectly acknowledging that the Frank Empire is the legitimate Human Race lineage, and these Kings are just restless Local Lords?
Even if it is inconvenient for the Kingdom to deploy troops, it should symbolically send an Expeditionary Army to strongly declare the political stance of Alpha Kingdom.
"Chancellor, you are already old!
Between nations, where is there room for personal feelings? Everything should be based on the interests of the Kingdom, why should we care about the feelings of the Frank people?"
No sooner had Caesar IV finished speaking than the atmosphere in the great hall instantly tensed up. For a Monarch to tell a Minister he is old is clearly to drive him out, isn't it?
If others were asked to resign, everyone might understand. But the person here, Duke Newfoundland, is not just an ordinary Chancellor of the Kingdom, he too is a core member of The Royal Family.