Any country 1 [that faces history in an honest and frank manner, truly learns lessons from history, and is genuinely committed to peaceful development] should not have any doubts about, 2 [much less raise objections to], such commemorations.
主幹:Any country (...) should not have any doubts about (...) such commemorations. 任何國家都不應對這樣的紀念活動有所懷疑。
其中,主語為「任何國家」Any country,謂語為「不應對……有所懷疑」 should not have any doubts about,賓語為「這樣的紀念活動」 such commemorations.
現象1:定語從句,修飾主語:"...that faces history in an honest and frank manner, truly learns lessons from history, and is genuinely committed to peaceful development..."
三個動詞短語並列連接,表示主語「country」的三個特徵。
現象2:插入語作謂語補充說明
"..., much less raise objections to, ..."