Such was the subsequent dismay among reactionary factions at this sign of weakness that the Tokugawa shogunate was soon overthrown.
The Tokugawa shogunate was overthrown violently by reactionary factions.
mnli hypothesis: The Tokugawa shogunate was overthrown violently by reactionary factions. premise: Such was the subsequent dismay among reactionary factions at this sign of weakness that the Tokugawa shogunate was soon overthrown.