Asking “when was the last battle of the Civil War fought?” is a trick question; the last battle has yet to be fought. One example of a minor skirmish is when New Orleans began its removal of Confederate monuments. The removal of the first monument looked like a covert operation. Using equipment with hidden company names, the removal crews wore masks and body armor while operating under the cover of darkness and police sniper protection. These precautions were deemed necessary because of threats. In addition to being controversial, the removal of such monuments is philosophically interesting.
One argument commonly used to defend Confederate monuments is the historical argument: the monuments express and are part of history and their removal is claimed to be like tearing pages from the history books. This argument does have some appeal, at least for objects marking an historical event and presenting facts. However, monuments tend to be erected to bestow honors, and this goes beyond marking an historical event and presenting history.
One example is the Battle of Liberty Place Monument. It was erected in New Orleans in 1891 to honor the 1874 battle between the Crescent City White League and the racially integrated New Orleans Metropolitan police and state militia. The monument was modified by the city in 1932 with a plaque expressing support for white supremacy. The monument was modified again in 1993 when a new plaque was placed over the 1932 plaque, commemorating all those who died in the battle.
From a moral perspective, the problem with this sort of monument is that it is not an objective historical marker, but and endorsement of white supremacy and racism. As such, to keep such a memorial in place would be to say the city at least tolerates white supremacy and racism. If these values are still endorsed by the city, then the monument should remain as a warning label. That way people will know to expect white supremacy and racism.
However, if the values are no longer endorsed by the city, then such a monument should be removed. This would express the current views of the people of the city. It could be objected that such removal would be on par with purging historical records. Obviously, the records of the event should not be purged. Historical records should aim at recording the facts without praising (or condemning) what has occurred. In contrast, to erect and preserve an honoring monument is to take a stance on the matter; to praise or condemn it.
It could be argued that the 1993 change to the monument “redeems” it from its white supremacist and racist origins and it and similar monuments should remain in place. This does have some appeal, part of which is that the monument expresses the history of the (allegedly) changed values. To use an analogy, a building that once served an evil purpose can be refurbished and redeemed to serve a good purpose. This, it could be argued, sends a more powerful statement than simply razing the building.
However, the monument was originally created to honor white supremacy, and the recent modification could be justly seen as an effort to conceal this fact. Since the monument does have historical significance, it would be reasonable to preserve it. After all, historical artifacts can be kept without endorsing values associated with the artifact. For example, keeping artifacts that belonged to Stalin as historically significant items is not to endorse Stalinism. Keeping a monument in a place of honor, is an endorsement.
The matter can become more complicated in cases involving statues of individuals such as General Robert E. Lee, Confederate President Jefferson Davis and General P.G.T. Beauregard. These men did shape the history of the United States. It also cannot be denied they possessed some personal virtues. Lee is often presented as a man of considerable virtue. P.G.T. Beauregard went on to advocate for civil rights and voting rights for blacks (though some might say this was due to political expediency).
Given their historical importance and roles, it can be argued that they were worthy of statues and that these statues should remain to honor them. The easy and obvious counter is that they engaged in treason against the United States and backed slavery. Whatever personal virtues they might have possessed, they should not be honored for their role in the Confederacy. Statues that honor people who were Confederates but who did laudable things after the Civil War should, of course, be evaluated based on the merits of those individuals. But to honor the Confederacy and its support of slavery would be a moral error.
It could also be argued that even though the Confederate cause of fighting for the right of some people to own other people is wicked, people like Lee and Beauregard earned their statues and their honor. As such, it would be unjust to remove their statues because of the political sensibilities of today. After all, as it should be pointed out, there are statues that honor the slave owners Washington and Jefferson for their laudable deeds within the context of the dishonor of slavery. If the principle of removing monuments that honored those who supported a rebellion aimed at creating an independent slave-owning nation was strictly followed, then there would need to be a rather extensive purge of American monuments. If honoring supporters of slavery and slave owners is acceptable, then perhaps the removal of the statues of the heroes of the Confederacy could be justified on the grounds of their rebellion against the United States. This would allow for a principled distinction to be made: statues of slavery supporters and slave owners can be acceptable, as long as they were not rebels against the United States. Alternative, the principle could be that statues of victorious rebel slavery supporters are acceptable, but those of losing rebel slavery supporters are not. Winning, it could be said, makes all the difference.