I think that May made a shrewd analysis of the situation
And figured out that Trump had to be at the Armistice celebrations in Paris
And that Putin would also be there.
Therefore she cooked up the whole Salisbury poison scam
So that she could contact Trump at the last minute
To join him and Trump and make peace over the allegations
She wanted to be sure that the UK was at the table.
The Paris celebration is the major Armistice commemoration
Because the peace treaty was signed in France
In a railway car in the Forest of Compiègne.
There will certainly be a US contingent there
Although they may all be in WWI uniforms
With WW1 weapons, vehicles, tanks, and horse drawn artillery.
The people involved in the US contingent will be charged with making
A US military parade happen in Washington DC next year.