US Drawdown Leaves Estonia Exposed

The small number matters because of what it says. Estonia's defence minister, Hanno Pevkur, confirmed last week that the US presence in his country had fallen from roughly 500-700 troops to fewer than 100 (NV). A few days earlier, about 1,000 American soldiers left Lithuania after the Pentagon cancelled a linked armoured-brigade rotation to Poland (Stars and Stripes).

From the Baltic to the Black Sea, the same pattern is appearing. US troop rotations are not permanent garrisons. They are temporary deployments that continue only if Washington sends the next unit. That handover, once treated as routine, has become uncertain. European allies are moving quickly to fill gaps, but they cannot produce the thing eastern states value most: a White House decision to put American troops on their soil.

Washington holds the switch

US rotational forces in Europe are not legal entitlements. The president sets the line, the defence secretary manages force levels, and commanders carry out the orders. When Defence Secretary Pete Hegseth began a six-month review of the US military presence in Europe in June, every eastern-flank rotation was pulled into the same Washington decision cycle.

According to Liga, citing the Wall Street Journal, Hegseth looked at deeper cuts, but the White House blocked them without closing the issue. The review is still open. Host countries are left planning around a question they cannot answer themselves.

There is plenty Europe can do below that level. After the Pentagon withdrew some forces, allies filled most of the holes within weeks (AP via Boston Globe). On July 1, the 1st German-Netherlands Corps took over coordination of NATO land forces already assigned to Estonia and Latvia. NATO Secretary General Mark Rutte presented the move as Europeans taking on more of the land defence of Europe (NATO, Latvian MoD).

That is real work. Command arrangements make forces easier to use. They do not create new forces.

Every flank state hedges, and hits the same ceiling

Latvia has offered US forces priority access to its military bases and training grounds: better scheduling, faster reception, fewer delays when American units arrive (LA.LV). That lowers the friction once Washington chooses to deploy. It does not make Washington choose.

Lithuania has built the strongest European hedge. Germany is stationing a permanent brigade there, expected to reach about 5,000 personnel by 2027, with schools and kindergartens for soldiers' children (Euronews, LRT). This is not a rotation. It is long-term European stationing.

Yet Lithuania's parliament still passed a resolution describing uninterrupted US troop presence as "an irreplaceable element of deterrence" (Regionų žinios). Even the country with the most serious European substitute says the American signal cannot be fully replaced.

Romania shows the same calculation on the Black Sea. The US halved its troop presence there at the end of 2025 (DW). Bucharest answered by expanding the air base at Mihail Kogălniceanu, where allied forces arrive, gather and move east (Digi24).

Better runways and staging areas matter. But they do not replace the aircraft, refuelling, surveillance and maritime patrol capabilities that make US forces so difficult to substitute (AP via Boston Globe).

Germany sits behind the whole system as the transit hub for eastern defence. Berlin is drafting legislation to give military transport priority on railways, roads and ports during a crisis (BMVg). The corridors are better than they were a decade ago. The unresolved question is who moves through them, and that still depends on Washington.

Finland shows the outer limit of European capacity. Its national defence is among the strongest in Europe, and its multinational NATO command in Mikkeli already includes American and Nordic officers (Finnish Defence Forces). Finnish analysts still judge a quick move to full European self-sufficiency unrealistic (Yle).

For Irish readers, from outside NATO but inside the same European security debate, the point is not abstract. Europe can spend more, plan better and build the military plumbing it neglected for years. It is doing all three. But for the frontline states, a US unit on allied soil does something no European command chart can do: it ties any crisis directly to the American presidency.

From Estonia to Romania, the conclusion is consistent. European allies are building better command structures, base access, transport corridors and legal frameworks. They are covering more gaps than looked possible five years ago. What they cannot supply is the political decision in Washington that puts an American unit in place.