Rashi cites a statement of Rabbi Yitzchok as to why whv Torah starts with Bereishis . He notes concern that the goyim might accuse Jews of stealing Israel. Nachshoni says this is not concern for goyim but is reflective of Jewish concerns for a military conquest.
The Chasam Sofer (Derasha for Simchas Torah) notes that some would claim that Israel should be conquered miraculously. But in fact there is no difference between a miraculous or natural conquest