Different sidebar for each category

Hello,
could you please help me with creating different sidebar for each category? I’ve already made this:

<?php if (is_category('France')) {
get_sidebar('france');
} else {
get_sidebar();
} ?>

But the sidebar doesn’t show on post from category France, but only when I’m on category archive France. Any advice, how to make, that the sidebar will also shown on each post from that category?