protected void killCrossingBoth(Unit u1, Unit u2) {
        addInfo(u1.getPlayer(), "DEFEAT: Your " + u1.getUnitType() + " on " + u1.getDeployedOn().getId()
                + " got destroyed while crossing by " + u2.getUnitType() + " from " + u2.getDeployedOn().getId() + ".");
        addInfo(u2.getPlayer(), "DEFEAT: Your " + u2.getUnitType() + " on " + u2.getDeployedOn().getId()
                + " got destroyed while crossing by " + u1.getUnitType() + " from " + u1.getDeployedOn().getId() + ".");