private void populateTab_fleets(StarSystem system) {
        // own fleets
        for (Fleet f : system.getFleets()) {
            if (f.getUser().equals(Client.getInstance().getLocalUser())) {
                BottomMenuToolbarIcon fleetButton = new BottomMenuFleetIcon(f, false);
                registerAction(fleetButton, ToolbarActionListener.Actions.VIEW_FLEET);
                fleetButton.putClientProperty("fleet", f);
                toolbarButtons.add(fleetButton);
            }
        }

        // enemy fleets
        for (Fleet f : system.getFleets()) {
            if (!f.getUser().equals(Client.getInstance().getLocalUser())
                    && !f.getUser().getFaction().equals(Client.getInstance().getLocalUser().getFaction())) {
                BottomMenuToolbarIcon fleetButton = new BottomMenuFleetIcon(f, false);
                registerAction(fleetButton, ToolbarActionListener.Actions.VIEW_FLEET);
                fleetButton.putClientProperty("fleet", f);
                toolbarButtons.add(fleetButton);
            }
        }

        // allied fleets
        for (Fleet f : system.getFleets()) {
            if (!f.getUser().equals(Client.getInstance().getLocalUser())
                    && f.getUser().getFaction().equals(Client.getInstance().getLocalUser().getFaction())) {
                BottomMenuToolbarIcon fleetButton = new BottomMenuFleetIcon(f, true);
                registerAction(fleetButton, ToolbarActionListener.Actions.VIEW_FLEET);
                fleetButton.putClientProperty("fleet", f);
                toolbarButtons.add(fleetButton);
            }
        }
    }