The 'reference' problem: This 'reference' was the document from the allied western powers demanding the retirement of Empress Dowager, and she decided to declare war after being enraged by it.
「照会」問題―この「照会」とは列強が西太后に引退を求めたとされる文書であり、これを見て激昂した彼女が宣戦を決めたという。