"It is of course satisfactory to think that, notwithstanding all the warlike preparations that were made, notwithstanding all the cannon, and the shells, and the rifles, and other engines of war that were sent out to Paraguay in the largest fleet ever dispatched from these shores, and notwithstanding the terrible menaces of the Paraguayans and their doughty chief, there is to be no bloodletting after all.
Peace is always better, and a good deal cheaper, than war; and in no event could the United States gain much glory by going to war with Paraguay.
On this bead, then, let us rejoice at the news."
Well worth noting, yet again, that in 1857 the Federal government under Democrat administration sent the US Army (Texan, future CSA Gen. AS Johnston commanding) to suppress the Mormon Rebellion in Utah and in 1858 sent a large naval war fleet (South Carolinian, Admiral Shubrick commanding) to "negotiate" with Paraguay.
Both missions were successful and nobody complained when Democrats did it.
When Republicans took similar actions in 1861... well... the complaints continue on even through today.