Ships from four nations sail in formation during the NATO Southern Region exercise DRAGON HAMMER '90. The ships are, from left: the British light aircraft carrier HMS INVINCIBLE (R-05), the Italian light aircraft carrier ITS GIUSEPPE GARIBALDI (C-551), the nuclear-powered aircraft carrier USS DWIGHT D. EISENHOWER (CVN 69), the Spanish aircraft carrier SPS PRINCIPE DE ASTURIAS (R-11) and the amphibious assault ship USS SAIPAN (LHA 2)