Because Europe’s armies are national: each state buys, and often builds, its own weapons, so a 2016 count found 178 types against America’s 30.
The number has become shorthand for European military disorganization. It is older and rougher than most people who quote it assume.
Where the number comes from
The figure first appeared in the Munich Security Report of February 2017, in a chart prepared by McKinsey from the International Institute for Strategic Studies’ Military Balance. It counted the types of weapon system in service in 2016 in eleven categories:
- main battle tanks: 17 in Europe, 1 in the United States;
- infantry fighting vehicles: 20 against 2;
- 152/155 mm howitzers: 27 against 2;
- fighter aircraft: 20 against 6;
- attack helicopters: 4 against 2;
- anti-ship missiles: 12 against 2;
- air-to-air missiles: 13 against 3;
- destroyers and frigates: 29 against 4;
- torpedoes: 20 against 4;
- conventional submarines: 11 against none;
- nuclear submarines: 5 against 4.
Total: 178 against 30. Four months later the European Commission reused the comparison in its reflection paper on the future of European defense, citing SIPRI, the IISS and the Munich report, and the figure has traveled ever since.
What it does and does not count
The count is a snapshot of 2016, and its “Europe” was wider than the EU: the Munich report defined it as the member states of the European Defence Agency, the countries with administrative arrangements with the agency, including Serbia and Ukraine, and Denmark. The Commission’s chart labeled the same numbers “EU-28”.
It also counts types, and where a type ends and a variant begins is a judgment call. In 2019 the German defense journal Europäische Sicherheit & Technik recounted the tanks strictly by type and found 11 in the EU-28 rather than 17, or 6 if Cyprus and Greece were left out; counting every variant, its author noted, would put Europe well above 17 and the United States above one.
No one has published a full recount since. The Draghi report on European competitiveness in 2024 cites twelve battle-tank types operated in Europe against one American. The exact count is dated and debatable; the gap with the United States is not.
What duplication does to an army
The cost of 178 types shows up in four places, none of them a single line in a budget.
Development is paid once per type, not once per continent. Production runs stay short, so every unit carries more of the fixed costs; a European Parliament study found the same PzH 2000 howitzer bought at unit prices between €4.5 million and €23.5 million by different European customers, though the packages behind those prices differ. Spare parts, ammunition and training pipelines multiply with every type. And armies standing side by side cannot easily share any of it.
Ukraine has tested that last point. According to the Draghi report, EU member states sent Ukraine some ten different types of 155 mm howitzer from their stocks, plus four more types from other NATO countries, several of them in different variants, which created what the report calls “serious logistical difficulties”. Every type needs its own spare parts and its own repair skills, delivered to a front line under fire.
When Europe had to buy fast, much of the money left the continent: between June 2022 and June 2023, the Draghi report found, 78 % of EU states’ defense procurement spending went to suppliers outside the EU, 63 % to the United States.
Why Europe got here
Defense purchases often escape the single market. Article 346 of the EU treaty lets a government set aside the common rules for arms where it considers its essential security interests at stake. Buying from a national factory keeps jobs, skills and political control at home, and each ministry answers to its own parliament for that choice.
Nothing has pulled hard the other way. EDA’s voluntary 2007 target, to buy 35 % of equipment together with other European states, has never been met; the story is in Does Europe buy weapons together?, and the spending series sits in European defence in numbers.
Europe’s three home-built fighters, the Eurofighter, the French Rafale and the Swedish Gripen, make up only about a third of its fighter fleet, according to the Draghi report; the rest are American.
The count is a symptom
178 types are what you get when some thirty governments each equip an army for themselves. The United States has 30 because it has one defense budget and one procurement system. The European Union now ties its SAFE defense loans to joint orders by at least two states, a first step toward buying as a group. A Europe that bought from one budget would still argue over types, but it would argue once.