beat one's swords into ploughshares

There are two choices before us: We can beat our plowshares into swords and prepare for war, or we can beat our swords into plowshares and prepare for peace.

And as for “beating our swords into plowshares” in the case of peacetime utilization of actual war implements: The United States Forest Service is testing the Pyrogel (goop) incendiary mixture for burning slash in forest areas. The Chemical Warfare Service in Hawaii is reconverting Napalm incendiary filler into liquid soap for use by the local military. Incendiary bombs have been furnished for experimentation in removing stumps in areas where means other than burning is impossible.