After the German invasion of France in May 1940 and the fall of Paris, France was invaded again, in June 1940. Invaded by which country?

The Italian invasion of France was the first major Italian engagement of World War II and the last major engagement of the Battle of France. Italy declared war on France (and Britain) on the evening of 10 June, to take effect just after midnight. The two sides exchanged air raids on the first day of war, but little transpired on the Alpine front, since both France and Italy had adopted a defensive posture along their frontier. On 21 June, with a Franco-German armistice about to be signed, the Italians launched a general offensive all along the Alpine front, with the main attack in the northern sector and a secondary advance along the coast. They penetrated a few kilometres into French territory against strong resistance. The offensive stalled before its primary objectives could be attained, the coastal town of Menton being the most significant conquest.