The proclamation of 1763 helped Great Britain mainly to pacify the Native Americans by checking encroachment of settlers in their lands. This declaration was made by King George III of Britain. This also happened during the end of the French-Indian War.
Is there anything to choose from
The answer is that no u can not because of the border.
As George is talking to Lennie its a double meaning because he's talking to Lennie as he's talking to himself trying to get the courage to kill Lennie