Original sentence: In one letter alone to Lord Rosebery, General Grant wrote: "Tell Sybil I think the war will be long and tiring" and "We cannot allow Germany to sack the world"
Edited sentence: In one letter alone to Lord Rosebery, General Grant wrote: "Tell Sybil I think the war will be long and tiring" and "We cannot allow Germany to sack the world"  Thus, Lady Sybil had an insight and perception, allowed to few others, into the machinations and politics of war