At their meeting in january of 1942, what argument persuaded president roosevelt and prime minister churchill to pursue a "europe-first" strategy?

Churchill thought that Germany was a bigger threat than Japan.

he would based it upon geographic luck which he often resulted his faith in.

crop rotation kepy different plants in the soil instead of once constintly. when switching out plants you have different nutrients being absorbed at different speeds and different roots growing differently therfore the spoil and water flow have to adapt and carry fresh nutrients to carry the constant changes that were going on in the soil.