Was LV killing just those in Britain?

[luv_lotr2]

No: HPFGUIDX 57310

Or was he also after certain wizards and witches in other parts of 
the world?  LV fame is of course, spread throughout the world..but 
was that because those in other area's knew of LV reputation?  If 
so, why would LV be only interested in getting rid of those in that 
area?  Was he only interested in becoming powerful in that region, 
or was it only his first step?

The "other" Mrs. Weasley