Maduro was given the chance to leave Venezuela but chose to stay, he has been a nuisance since following Hugo Chavez. Chavez took Venezuela from one of the richest South American Countries, to now being the poorest. Venezuela have been threatening Guyana, hence some of this action is to upheld the American Oil presence in Guyana which now has a GDP Capita of $31K and is the fastest growing economy in the world.
The challenge for Guyana is that this 'wealth' is used for the good of the small population of 836,000 and not just for the Exxon Mobil shareholders.
Richard Walker/ Rory Stewart and their like are the reason why the Conservatives are currently where they are. Both,of these have never been Conservatives, just people because of their backgrounds that could not have joined the Labour Party. Walker is someone know doubt who has always got whatever he asked for, hence when denied a Safe 'Seat' by CCHQ jumped ship to Labour ! No proper Conservative could ever jump ship to the Labour party. Only impostors who think they have the god given right to be elected.