To: Spain
From: The United States of America
So you plan on killing Americans en masse? We aren't suggesting that what they did was legal, by any means. But if a government cannot moderate, and control things such as immigration, and notice when growing dissent beckons calls for Revolution from foreign nationals, perhaps the government should start to shift the blame to itself.
A question arises- What did Spain expect to happen when thousands of Americans moved into Florida? For all of them to assimilate perfectly? Your position is rather untenable.
You continually find rather flimsy excuses as to why we cannot work out some sort of deal in this situation. You are stubborn to a fault, and we hope that, Spain as a whole does not suffer for it. If you don't wish to negotiate, that is on you. We do not wish for war, nor will we actively seek it. You may handle the guilty Americans as you may wish. But making martyrs of the population won't do you very much good. When it backfires on you miserably, know that we will not be as kind in that regard, as we are now. And know if you harm a single innocent American life, our next communications will certainly be less amiable.
To: United States
From: Empire of Holy Spain
Despite what you may think, we regard law very high. The ones that do not do it are those that come into Florida and immediately think that they can do whatever they want. They can not make their cake and eat it, as it is said. If they want to live in Florida, then they have to live with the laws and culture of Florida. If they want to live with the laws and culture of the United States, then they have to live within the United States. The last time we checked, Florida was not a part of the United States, but of the Empire of Holy Spain. They can not come and demand that the Empire's laws adjust to their wishes.
We admit that the soldiers' attack on the so-called Jacksonville was disproportionate, but those that resisted also acted in a disproportionate way. When they arrived to Florida, they should have known that they would not live by their former laws anymore. We never expected them to easily assimilate the superior culture of the Empire, but at the same time, we expect people that live somewhere under the Emperor's rule to obey the laws sanctioned by the Emperor.
Another question arises, too: if these people want to be citizens of the United States, why do they leave the United States? If they want new lands, there is enough space west of the Mississippi River. They have no need to come to Florida. They knew when they came to Florida that it was part of Spain. They can not put any excuses and say that, when they travelled to Florida, they expected the United States Flag to fly over their town hall.
Believe us, those people that are found to be guilty of treason against the Emperor will be judged and condemned. If an "American" life is harmed, then it will be because they decided to rebel against the government they should obey. And if the "Americans" don't want to obey, there is an easier resource than fighting the government. They can pack everything they possess and go up north, where they will surely find what they want.
And... flimsy excuses? Sorry for not giving you a colony of ours for what would surely be a minimal fraction of the money we have invested there. We are sure that, if, for example, New England was full of English people and they suddenly rebelled because they want to be ruled by the King of the United Kingdom, you would not sell New England to the United Kingdom "for a reasonable price", as you say we should do. You would make sure those people who rebelled were judged, and that the land they wanted you to sell went back under your country's rule.
Again, we ask you not to insult our intelligence.
And remember one thing: if it weren't for the Empire of Holy Spain's support, the United States would not exist. So, do not act ungratefully after we helped you.
OOC: The reason why I'm saying this is that Spain heavily supported the United states during the American Revolutionary War. Given that, in here, the Kingdom of France does not exist (or at least it doesn't exist as it does in OTL), the only great powers able to aid the United States would have been Spain and Sweden, and I can't see only Sweden giving a hand to the US.