"These are the nations the Lord left to test all those Israelites who had not experienced any of the wars in Canaan (He did this only to teach warfare to the descendants of the Israelites who had not previous battle experience)..."
Why did they need battle experience? Because they would face future wars. They needed to be tested in the battles so that they would win in the war. This time of being raw before the Lord, and ripe for battle is to get me ready for the war that's coming. So instead of fighting with God over why I have to fight at all, or opting to sit out, I am picking up my sword and falling in line. I'm going to feel all the emotions (not run from them or "medicate" myself with distractions), and make the hard choices, and be open to what God is calling me too in every aspect of my life. I'm excited to see where He's leading, and what He's calling me and my family to, and all the changes that will occur. Who knows, maybe this time next year I won't recognize myself :).