public static void defend(SimulatedPlanetWars simpw) {	//send ships from the lowest growing planet to the best one
		// Tested
		int maxGR = 0;
		int minGR = 5;
		Planet source = null;
		Planet dest = null;
		for (Planet p : simpw.MyPlanets()){
			if (p.GrowthRate()>maxGR){
				maxGR = p.GrowthRate();
				dest = p;
			}
			if (p.GrowthRate()<minGR){
				minGR = p.GrowthRate();
				source = p;
			}
		}

		if (source != null && dest != null) {
			simpw.IssueOrder(source, dest);
		}

		updateLearning(-1);
	}