Not trying to be difficult about $1 … the whole CRD thing is fuzzy to me. But British Columbia is a LONDON territory, not CALCUTTA. And besides that, to do convoy damage to British Columbia, you’d need boats in sz1, wouldn’t you?
I’m either as a dump as a sack of hair (a distinct possibility), or you meant some other territory, or I just haven’t read the rules very closely.
And after all that,… it’s $1. It’s not like it’s going to save the Brit’s bacon – those guys in India are dead, whenver you decide to pull the trigger.