Retreat
If the Canada who entered the United States. presidential palace this time were all genuine, English-speaking Canada, that would be fine. Those guys, though mischievous, had limited artistic talent. They weren't very creative when it came to graffiti; at most, they'd use some red paint to write random nonsense, like gibberish starting with the letter F, such as "I FY," things with absolutely no skill involved.
However, there are also French-speaking people from Quebec among the Canada. Quebec was originally a France colony, but after the France were defeated by the Britain in the Seven Years' War, the colony fell to the Britain. However, the main inhabitants there still speak French, only now they are French-speaking Britain. Just like in Louisiana today, there are German-speaking France people everywhere.
These French-speaking people didn't seem to have a strong sense of Britain identity. Frankly, they didn't identify much with Canada either; even centuries later, they frequently threatened to hold referendums for independence. But at this time, they were incredibly enthusiastic about fighting the United States. This, of course, was because— the United States were persecuting Catholicism!
Many of the initial Britain immigrants who came to North America sought refuge from the persecution of Puritans by the Britain. But as the saying goes, the boy who slays the dragon often becomes the dragon himself. Once these Calvin believers established their own nation, they immediately began persecuting other heretics, such as Catholicism.
However, this can be considered a traditional skill of Calvinism. When Calvin was still being persecuted by Catholicism, he wrote very sincerely in his most important work, Institutes of Religion: "To put heretics to death is a sin, and to end their lives with fire and sword is against all principles of humanity." But after Calvin became the de facto ruler of Geneva, he immediately used a heretic named Servetus, who did not recognize the Trinity, to roast him.
So when the Puritans, these followers of Calvin, gained power in United States, they followed their teacher's example and launched a fierce attack on those "impious heretics." Many Catholicism fled to the French-speaking regions of Canada, taking this religious hatred with them.
When it comes to artistic talent, French speakers are definitely better than English speakers. For example, when Private Bill from Ottawa was carrying a bucket of black paint, ready to write some crude and vulgar text on the President of the United States' desk, his friend Louis from Quebec stopped him.
"What do you plan to write on this?" Louis asked.
"Of course it is, Jefferson, I'll f*** your whole family. What else could it be?" the simple-minded Bill retorted.
"This is so unimaginative! This is truly... Listen to me! First, you need to get a can of red paint, then you need to write this: 'Dear President Jefferson, I had a good time playing with your sisters and daughters on your desk, and with their saliva, I wrote you this letter. They all say I'm much more capable than you...'"
"Wow! Louis, you're such a bad guy! But it's really funny to write it like this, hahaha... Let's do it!"
Then Bill went and replaced the can with red paint...
Besides the written text, those French-speaking folks also left behind a large number of paintings at the presidential palace, such as Calvin going to hell, and Calvin leading the Puritans to kowtow to Lucifer in hell, which were quite realistic.
In addition, Canada also found a secret passage beneath the United States presidential palace, but it seems no one has been inside for a long time, and its purpose is unknown.
However, the Britain offensive essentially came to an end there. Without reinforcements from home, the Britain, and indeed the Canada, faced a major, intractable problem: their troop strength and logistical resources were at their very limits. Now, with the fighting at this point, they had essentially reached those limits. The logistical lines from Cleveland to Washington were also under constant harassment from the United States.
Just as in another timeline, after Napoleon conquered Moscow, he stopped Moscow hoping to meet the Tsar's peace envoy, General Isaac Block also stayed in Washington for a week with his army, waiting for the peace envoy that the United States might send.
However, despite suffering several defeats, the United States did not intend to seek peace immediately. The United States knew that the Canada's strength had reached its limit, and as long as the United States Navy continued to blockade Canada shipping routes, the Canada's strength would eventually wane. Even if negotiations were necessary, it would be much better to negotiate then than to negotiate now.
On the other hand, although the United States were thoroughly outmatched by the Britain on the main battlefields, the militant United States still had great potential for harassment and raids. United States civilians had many guns, and the guns they bought themselves were generally better than those procured by the government for the army. Moreover, because they were experienced with guns, their marksmanship was quite good. Therefore, riding horses and carrying guns, they frequently raided Britain supply convoys and performed remarkably well.
After a week's stay, General Isaac Blok led his army back along the same route. Just as in history, when Napoleon withdrew from Russia, the Russia Cossacks followed behind Napoleon's army, constantly launching attacks and inflicting heavy losses on the France Napoleon.
However, the British Army was in a much better position than Napoleon in another timeline. United States militias did indeed spontaneously follow the British Army, attempting to ambush the retreating British Army. But the Britain needed to retreat a much shorter distance, and more importantly, the United States lacked a powerful General Winter.
Therefore, the Britain retreat to Cleveland proceeded quite smoothly. Most of the United States cavalry who tried to follow and gain an advantage ended up empty-handed, and some were even badly wounded by the Britain counterattack. The Britain not only successfully retreated to Cleveland but also looted everything they could along the way. The Britain knew that if reinforcements could not be quickly sent from home, Britain biggest enemy in North America for some time to come would likely be a shortage of supplies.
For some time afterward, the British Army, centered in Cleveland, used its control of the waterways of the Great Lakes to harass nearby United States, looting their towns and farms. They then transported these goods back to Canada by water.