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Analysis

Cohesion

All roll calls · whole term, 16 Jul 2024 – 25 Sept 2026 · topic EU security & defence policy (model-assigned) · political groups · per quarter · abstentions counted

How united do the groups vote — over time, and on the votes of each committee or topic?

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Period Term202420252026Last 6 months
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Cohesion over time

Agreement Index per quarter, from 0 (evenly split) to 1 (all voted the same). A vote counts for a bloc when at least 10 of its members and a third of its seats voted; a gap is a period with fewer than 20 votes counted.

Cohesion of the groups per quarter, Q4 2024 to Q3 2026: Agreement Index from 0 (evenly split) to 1 (all voted the same).

Q4 2024 → Q3 2026; each panel highlights one series, the others faint behind it.

Data as a table
Agreement Index per period (0 = evenly split, 1 = all voted the same), with the votes counted in it. — : fewer than 20 votes counted in the period (a vote counts for a bloc when at least 10 of its members and a third of its seats voted).
PeriodThe LeftGreensS&DRenewEPPECRPatriotsESN
Q4 2024—13 votes—13 votes—13 votes—13 votes—13 votes—13 votes—13 votes—13 votes
Q1 20250.66106 votes0.82106 votes0.91106 votes0.90106 votes0.93106 votes0.85106 votes0.64106 votes0.76106 votes
Q2 20250.8447 votes0.8847 votes0.9247 votes0.8847 votes0.8547 votes0.8247 votes0.7047 votes0.8247 votes
Q4 20250.7023 votes0.8123 votes0.9223 votes0.9423 votes0.9623 votes0.7823 votes0.5623 votes0.7323 votes
Q1 20260.7535 votes0.8235 votes0.8835 votes0.9035 votes0.9435 votes0.7935 votes0.6735 votes0.7235 votes
Q2 20260.8323 votes0.8823 votes0.9423 votes0.9723 votes0.9823 votes0.8823 votes0.7123 votes0.7323 votes
Q3 2026—13 votes—13 votes—13 votes—13 votes—13 votes—13 votes—13 votes—13 votes
Whole period0.740.840.920.910.920.820.680.78
Votes considered260260260260260260260260

Over the whole selection

Each group’s Agreement Index over every vote in the selection where enough of its members voted.

Cohesion: the Agreement Index (0–1) over the votes counted — votes where at least 10 members and a third of the seats voted; — : fewer than 20 such votes. Seats: members now. Order as the backend lists the blocs, not a ranking.
GroupCohesionVotes countedSeats
The Left 0.7426044
Greens 0.8426053
S&D 0.92260135
Renew 0.9126078
EPP 0.92260184
ECR 0.8226084
Patriots 0.6826085
ESN 0.7826027

The tables by committee and by topic are computed over a whole period: choose Whole period.

About these figures

What was counted, what was left out, and how.

  • 260 votes considered (all roll-call votes matching the filters; scope).
  • 1 of 18 decisions in the period had no final vote recorded by name (a show of hands or a count without names) and cannot be measured.
  • Cohesion is the Agreement Index: 1 when every voting member took the same position, 0 when the bloc split evenly three ways (method). A bloc counts on a vote only when at least 10 of its members and a third of its seats voted; the non-attached have no group cohesion.
  • Months are offered for all roll calls only, and a month needs at least 20 votes.
  • Each member is counted in the group they belonged to on the day of the vote (group at the date).
  • Roll calls are not a random sample: final votes on laws are recorded by name, most other roll calls because a group asked for it. A group’s line is inferred from its members’ votes; the Parliament publishes no whip.
  • Methods: Cohesion (Agreement Index) v1, Final votes and all roll calls v1, Group at the date of the vote v1.
  • Data as of 25 Sept 2026, 03:36 UTC (data stamp f37e5638cded, code 6d4005c55bde; what the stamp is).
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Sources & citation

Where the facts on this page come from, and how to cite it.

Data source
Licensed CC BY 4.0.
Data version
data version f37e5638cded (25 Sept 2026) · methods: group-at-date v1, participation v1, abstention v1, loyalty v1, against-clear v1, cohesion v1, agreement v1, group-agreement v1, winning-side v1, similar-votes v1, scope v1, data-version v1 · methods
Retrieved
25 September 2026

Cite as

EU Parl Watch Research (2026). “Cohesion — All roll calls · whole term, 16 Jul 2024 – 25 Sept 2026 · topic EU security & defence policy (model-assigned) · political groups · per quarter · abstentions counted”. Analysis. EU Parl Watch Research. https://news.eu-parl.st-solutions.dev/analysis/cohesion?scope=all&topic=defence%2Fpolicy&to=2026-09-25 (retrieved 25 September 2026). Data: European Parliament Open Data, https://data.europarl.europa.eu/ (CC BY 4.0); data version f37e5638cded (25 Sept 2026) · methods: group-at-date v1, participation v1, abstention v1, loyalty v1, against-clear v1, cohesion v1, agreement v1, group-agreement v1, winning-side v1, similar-votes v1, scope v1, data-version v1.
BibTeX
@misc{epw-analysis-2026-09-25,
  author = {{EU Parl Watch Research}},
  title = {{Cohesion — All roll calls · whole term, 16 Jul 2024 – 25 Sept 2026 · topic EU security \& defence policy (model-assigned) · political groups · per quarter · abstentions counted}},
  year = {2026},
  howpublished = {\url{https://news.eu-parl.st-solutions.dev/analysis/cohesion?scope=all&topic=defence%2Fpolicy&to=2026-09-25}},
  url = {https://news.eu-parl.st-solutions.dev/analysis/cohesion?scope=all&topic=defence%2Fpolicy&to=2026-09-25},
  urldate = {2026-09-25},
  publisher = {EU Parl Watch Research},
  note = {Analysis. Data: European Parliament Open Data (CC BY 4.0); data version f37e5638cded (25 Sept 2026) · methods: group-at-date v1, participation v1, abstention v1, loyalty v1, against-clear v1, cohesion v1, agreement v1, group-agreement v1, winning-side v1, similar-votes v1, scope v1, data-version v1}
}