I mean, still what is significant? It seems you see the Napoleonic wars as such. Considering involvement of countries, the Crimean war had 4 great and 2 minor powers involved and lasted for 3 years. Granted the Crimean war was shorter and had less than the 6 great powers involved as were during the different coalition wars, with 1/4 the of the dead, but politically it was very significant and certainly not small nor regional in its effects.