The treaties are far from the start of a full alliance but Anglo-American relations are probably at their best since the Civil War.
Better than what they had OTL, for both sides. The advantages of the two allying together are immense, especially as it was becoming recognised (not right now but by 1905) that of all the great powers, the British and the Americans were becoming a class of their own. If they could figure out how to reconcile Canada and the rest of the British territory in the Americas with the US demand of sole interest in the continent, and even something like how they feel about the Pacific would be very helpful to both in the 20th c. Hell, if the Americans do go imperialist, it's even in their interests to keep both empires up and running as a beacon of enlightened values. If an alliance were to occur and relations to get very friendly, it would be interesting to see UK/US reactions to the conflicts between Germany, France and Russia.
Liberia does shift things a bit. Question will satiate American imperialists or only encourage them further?
I feel like as interesting as that would be to explore, it's beyond the tiny American government of the time. And trying to change that without extreme circumstance (like the Great Depression or World Wars) would be difficult at this time. Though...I guess you could try and figure out a way of doing it.
@Jape - friendly relations between UK and USA being something of a threat to the rest of the world.
Probably not a threat persay, but certainly the most powerful alliance in the world.
Very bad for weak colonial targets and independence movements in either empire, as well as any trading nation trying to get a good deal out of them.as for large wars, I wonder...the First World War would probably start in some similar way, because France, Germany, Austria Hungary and Russia all need to fight for various reasons that have not been changed by this AAR. But with its international and global position secure, would Britain be as eager to join the war immediately or would they wait in the wings with the rest of Northern Europe and watch to see what happens? Would the US? All very interesting.