If she could encourage a complete isolationalist attitude, then this would have had a very drastic effect.
Firstly, no lend-lease act. It took a considerable time for Britain to recover from the losses in the France campaign, and a lot of this shortfall was made up with lend-lease. There was even a huge reliance on the US donating older escorts to help in the Battle of the Atlantic. This is not even including the munitions supplies. Even the massive Soviet war machine relied on lend-lease and without Britain being a thorn in Germany's back the advance may have ben more swift and caught up with the factories before they could be moved further east.
Secondly, they would not apply embargoes against Japan, meaning the attack on Pearl Harbor may have never even been needed, not provoking the USA.
Firstly, no lend-lease act. It took a considerable time for Britain to recover from the losses in the France campaign, and a lot of this shortfall was made up with lend-lease. There was even a huge reliance on the US donating older escorts to help in the Battle of the Atlantic. This is not even including the munitions supplies. Even the massive Soviet war machine relied on lend-lease and without Britain being a thorn in Germany's back the advance may have ben more swift and caught up with the factories before they could be moved further east.
Secondly, they would not apply embargoes against Japan, meaning the attack on Pearl Harbor may have never even been needed, not provoking the USA.