Italy & the United States

Transatlantic Relations

Eight decades of partnership: how Italy and the United States built one of NATO's most operationally significant bilateral relationships — and how Minister Crosetto stewards it today.

From Liberation to Alliance: 1943–1949

The US-Italy relationship was forged in the crucible of the Second World War. American and Allied forces landed in Sicily in July 1943, beginning a gruelling campaign that liberated the peninsula from fascism and German occupation. The human cost — borne by both Italian civilians and American service members — created a bond that transcended mere strategic calculation. More than 120,000 American soldiers are buried in Italy's military cemeteries, a permanent reminder of the sacrifice that underlies the alliance.

Postwar reconstruction was shaped decisively by the Marshall Plan (European Recovery Program, 1948–1952). Italy received approximately $1.5 billion in American assistance — one of the largest national allocations — helping to stabilise the economy, suppress inflation and fund the industrial investment that would underpin the "economic miracle" of the 1950s and 1960s. The Plan also carried a political dimension: American assistance was consciously deployed to support centrist democratic forces against both the far right and the Italian Communist Party (PCI), then one of the largest in Western Europe.

Italy's decision to join the North Atlantic Treaty at its founding in April 1949 was not foregone. Italy's defeat in the war raised questions about its eligibility; its large communist electorate raised concerns about reliability. Yet the United States pushed for Italian membership, recognising that the peninsula's strategic position — jutting into the central Mediterranean, flanking Yugoslavia, and providing bases for projecting power towards the Middle East and North Africa — was indispensable to NATO's southern flank. Italy was among the twelve founding signatories of the Washington Treaty on 4 April 1949.

Key Historical Milestones

July 1943 Allied landing in Sicily; start of Italian Campaign
April 1945 Liberation of northern Italy
1948–1952 Marshall Plan — ~$1.5 billion to Italy
4 April 1949 Italy signs North Atlantic Treaty — founding member
1951 Italy joins Mutual Defense Assistance Program
1954 Trieste settlement — US-brokered solution
1959 Jupiter IRBMs deployed in Italy — later withdrawn 1963
Strategic Significance

Italy's geography — 7,600 km of coastline, proximity to North Africa, and flanking position on NATO's southern wing — made it a cornerstone of American Mediterranean strategy throughout the Cold War and beyond.

American Military Installations in Italy

Italy hosts one of the largest concentrations of US and NATO military infrastructure in Europe. These installations underpin alliance operations across the Mediterranean, Middle East and beyond.

Air Power

Aviano Air Base

Located in Friuli Venezia Giulia in northeastern Italy, Aviano is the home of the 31st Fighter Wing (USAF), the only permanently forward-deployed F-16 wing in Europe. With approximately 5,000 US military personnel and dependents, Aviano is one of the most significant American air installations in Europe. The base has been a launch point for operations across the Balkans (including during the 1999 Kosovo air campaign), Afghanistan and the broader Mediterranean region. Aviano is also one of Italy's nuclear sharing sites, hosting B61 gravity bombs under NATO's nuclear sharing arrangement.

Naval Intelligence & Maritime

NAS Sigonella, Sicily

Naval Air Station Sigonella, situated near Catania in Sicily, is one of the most strategically important US naval installations in the world. Known as the "Hub of the Med," Sigonella supports a vast range of maritime patrol, logistics and intelligence operations across the Mediterranean, Arabian Sea and Indian Ocean. The station hosts P-8 Poseidon maritime patrol aircraft, MQ-4C Triton unmanned aerial vehicles, and serves as a logistics hub for carrier strike groups operating in the region. Sigonella's location places it within range of potential crisis zones from the Levant to sub-Saharan Africa.

Army Logistics

Camp Darby, Livorno

Situated near Livorno (Leghorn) in Tuscany, Camp Darby is the largest US Army munitions storage depot outside the continental United States. The facility stores pre-positioned war reserve material — ammunition, equipment and supplies — for rapid deployment in crisis scenarios. Camp Darby also hosts a US Army installation management and support function, and has been used for the transshipment of military equipment to operations in the Middle East and beyond. Its role in logistics and pre-positioning makes it a critical node in US force projection capability.

NATO Southern HQ

Naples – Allied Joint Force Command

Naples hosts NATO's Allied Joint Force Command Naples (JFC Naples), one of two operational-level HQs under Supreme Allied Commander Europe (SACEUR). JFC Naples has command responsibility for the southern geographic area of NATO's area of operations, covering the Mediterranean and flanking regions. Commanding the JFC Naples is a NATO appointment held by rotation among allies; the HQ conducts planning, exercises and operational oversight for the southern alliance area. Co-located at Lago Patria is the headquarters of US Naval Forces Europe-Africa/US Sixth Fleet, cementing Naples as the centre of Allied maritime command in the Mediterranean.

Command & Control

Vicenza – Del Din Barracks / USAG Italy

The US Army Garrison Italy, headquartered at the Del Din Barracks (formerly Caserma Ederle) in Vicenza, hosts the 173rd Airborne Brigade — the only American airborne brigade permanently stationed in Europe. The 173rd is NATO's primary contingency force and has been deployed to Afghanistan, the Middle East and, on exercise, to Eastern European allies. Vicenza's garrison also supports the 2nd Cavalry Regiment rotations and provides garrison support across US installations in Italy.

Electronic Warfare & Signals

Other Installations

Beyond the major installations, Italy hosts a network of smaller US and NATO facilities: the MUOS satellite communications station at Niscemi in Sicily (which faced local opposition before becoming operational); the US Naval Support Activity at Gaeta, homeport of the USS Mount Whitney (command ship of US Sixth Fleet); the Naval Support Activity Naples at Gricignano; and various communications, intelligence and logistics support facilities. Together these create a dense infrastructure of allied presence across the peninsula and its islands.

~12,000
US military personnel in Italy
5+
Major US/NATO installations
1949
Italy joins NATO (founding)
2
Nuclear sharing air bases (NATO)

NATO Nuclear Sharing and Italy

Italy participates in NATO's nuclear sharing arrangement, under which non-nuclear member states are involved in the planning and potential delivery of nuclear weapons in a conflict scenario. This arrangement has been a cornerstone of extended deterrence since the Cold War: by giving European allies a role in nuclear decision-making and delivery, NATO sought to prevent nuclear coercion and reinforce the credibility of the Article 5 collective defence guarantee.

Italy hosts US B61 nuclear gravity bombs at two sites: Aviano Air Base and Ghedi Air Base in Lombardy. Italian Tornado and, in the future, F-35A aircraft are certified for the nuclear delivery mission. Italian pilots train for the delivery role under the oversight of USAF personnel and NATO's Nuclear Planning Group. The arrangement is not unique to Italy — similar sharing applies in Belgium, Germany, the Netherlands and Turkey — but Italy's dual-site hosting and its certified delivery platforms make it one of the most substantive participants.

The B61-12 life extension programme — which replaces older B61 variants with a modern, guided bomb — is being deployed to NATO nuclear sharing sites including those in Italy. The B61-12 is smaller in yield but more accurate, reflecting the shift in nuclear doctrine from mass deterrence to flexible response. Minister Crosetto has consistently affirmed Italy's commitment to the nuclear sharing arrangement as an integral part of NATO solidarity and credible deterrence, rejecting calls for the withdrawal of US nuclear weapons from Italian soil.

Nuclear sharing is not a relic of the Cold War — it is a living expression of alliance solidarity and the irreplaceable foundation of extended deterrence in Europe.

Context of Italian strategic debate, 2023

Nuclear Sharing Framework

Weapon Type B61 gravity bomb (B61-12 LEP)
Italian Sites Aviano AB, Ghedi AB
Delivery Aircraft Tornado IDS (current); F-35A (transition)
Governance NATO Nuclear Planning Group
Other NATO sharers Belgium, Germany, Netherlands, Turkey

Crosetto's Engagement with US Counterparts

Minister Crosetto at multilateral defence meeting

Minister Crosetto at a multilateral defence council. Bilateral meetings with US counterparts form a regular part of his ministerial calendar.

Since taking office in October 2022, Crosetto has met regularly with successive US Secretaries of Defense — Lloyd Austin and subsequently Pete Hegseth — in the margins of NATO Defence Ministers' meetings, bilateral consultations in Washington and Rome, and on the sidelines of NATO summits in Madrid (where he had not yet taken office, but Italy was represented), Vilnius (2023), and Washington (2024).

The bilateral US-Italy defence relationship encompasses several key tracks. On Ukraine, Italy and the United States have coordinated closely on the scope, pace and composition of military assistance packages. Crosetto has navigated Italy's complex domestic politics — where significant portions of both left and right opinion have reservations about arms deliveries — while sustaining Italy's contribution to Ukraine's self-defence within the Ukraine Defence Contact Group (Ramstein format).

On burden sharing, Crosetto has been among the European defence ministers most vocal about the need for allies to reach the 2% of GDP defence spending benchmark, acknowledging that Italy — which spent approximately 1.5% of GDP on defence in 2023 — needs to increase its commitment. This position has aligned him with US expectations while reflecting genuine domestic constraints. His multi-year defence investment plan is designed to show a credible trajectory towards the alliance target.

Defence Trade and Industrial Cooperation

The US-Italy defence industrial relationship is extensive. Italian companies — notably Leonardo — are significant players in the US defence market, with subsidiaries including DRS Technologies (now Leonardo DRS) providing ground systems and electronics to the US military. Conversely, Italy procures major platforms from US manufacturers: the F-35 Lightning II is being acquired for both the Italian Air Force and Navy; the Boeing P-72A (militarised version of the 737) serves as a maritime patrol aircraft; and C-130J Hercules transport aircraft of US manufacture equip Italian airlift squadrons. The bilateral defence trade relationship is managed under a Defence Trade Cooperation Agreement and subject to US International Traffic in Arms Regulations (ITAR).

Burden Sharing, Ukraine and Transatlantic Tensions

Defence Spending

Burden Sharing Debate

NATO's 2% of GDP defence spending guideline — agreed at the Wales Summit in 2014 — has become a recurring point of friction in the transatlantic relationship. Italy, which spent approximately 1.5% of GDP on defence in recent years, has faced US pressure to increase its contribution. Crosetto has responded with a multi-year plan to raise defence spending, acknowledging Italy's obligations while citing Italy's substantial non-financial contributions: hosting US bases, operating in Afghanistan, the Balkans, Lebanon, the Horn of Africa and the Sahel, and providing the Atlantic alliance with its critical southern flank geography.

Ukraine

Italy's Position

Italy's support for Ukraine has been consistent but calibrated. Under Crosetto's stewardship, Italy has provided military assistance across multiple tranches — including air defence systems, artillery ammunition and other materiel — authorised through parliamentary decree. Italy participates in the Ukraine Defence Contact Group (UDCG), the Ramstein-format coordination mechanism established in 2022. Crosetto has argued consistently that supporting Ukraine is in Italy's long-term security interest and fully consistent with alliance solidarity, while being attentive to domestic political sensitivities and avoiding unilateral escalation outside the alliance framework.

Joint Exercises

Military Cooperation

US and Italian forces train and exercise together extensively. Annual exercises include operations under EUCOM and AFRICOM frameworks, joint exercises in the Mediterranean such as Neptune Strike and DACT (Dissimilar Air Combat Training) programmes at Aviano. The 173rd Airborne at Vicenza regularly deploys to NATO's eastern flank countries alongside Italian paratroopers of the Folgore brigade. Naval cooperation in the Mediterranean under the NATO Standing Naval Force Mediterranean (SNMG2) regularly includes both US and Italian vessels. These operational links sustain interoperability and personal relationships between officer corps at all levels.