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Fondapol and TROP are parallel series. They are not additive, and they are not a row-matched panel. Only identical date windows belong in a numeric comparison.
Aligned window: 2001–2012
Same calendar yearsFondapol’s 2001–2012 period and TROP yearly totals for 2001–2012. This is the only headline pair that shares a closed calendar window.
| Metric | Fondapol | TROP | Δ (TROP − Fondapol) | TROP / Fondapol |
|---|---|---|---|---|
| Attacks | 8,265 | 21,434 | +13,169 | 259.3% |
| Deaths / killed | 38,187 | 110,307 | +72,120 | 288.9% |
Misaligned windows — labeled, not compared as equals
These rows are here so the mismatch is visible. Do not treat the deltas as a measurement of the same thing.
| Window | Fondapol attacks | TROP attacks | Fondapol deaths | TROP killed |
|---|---|---|---|---|
2013–2024 (misaligned) Fondapol ends 12 Apr 2024; TROP is the full calendar years 2013–2024. | 56,413 | 27,197 | 204,937 | 190,450 |
Full published span (misaligned) Fondapol 1979–12 Apr 2024 vs TROP 2001–24 Aug 2026. Different start and end dates. | 66,872 | 51,646 | 249,941 | 319,942 |
Conceptual overlap — not a row match
Fondapol GTD/ACLED microdata is not ingested (license and file size). There is no “Fondapol only / TROP only / both” flag on individual incidents, because that would be a fabricated join.
| Layer | Fondapol | TROP | Agreement |
|---|---|---|---|
| Islamist terrorism, 2001–2012 | Yes, GTD extract | Yes, news list | Both, conceptually |
| 1979–2000 | Yes | No (starts 11 Sep 2001) | Fondapol only |
| After 12 Apr 2024 | No | Yes, through 2026-08-24 | TROP only |
| Low-casualty GTD events | Usually included | Usually omitted | Fondapol only |
| Iraq 2006–07 civil-war deaths | Mostly dropped as insurgency | Listed | TROP only / disputed |
| Sudan Janjaweed / RSF 2024–26 | Civil-war deaths excluded | Listed as Islamic terror | TROP only / disputed |
| Honor killings | Generally out of scope | Sometimes listed | TROP only |
| Foiled plots | Some GTD / national series | Rarely recorded | Mostly Fondapol / CSIS / Europol |
TROP classification overlap (this site’s coder)
Share of TROP line items that survive the current scope and that the v1 classifier marks in-strict (attack, insurgency, or hate-crime/lone-actor). This is not a GTD recode.
| Slice | Rows | In strict | Strict share | Strict killed share |
|---|---|---|---|---|
| 2026 YTD line items | 1,005 | 909 | 90.4% | 87.6% |
| Last 30 days | 99 | 92 | 92.9% | 93.0% |
| TROP Europe page | 545 | 510 | 93.6% | 98.5% |
| TROP United States page | 125 | 122 | 97.6% | 99.9% |
2026 YTD by class (after scope)
| Class | Rows | Killed | Row share |
|---|---|---|---|
| attack | 858 | 4,294 | 85.4% |
| insurgency | 45 | 236 | 4.5% |
| civil war | 50 | 570 | 5.0% |
| honor killing | 6 | 6 | 0.6% |
| hate crime | 6 | 2 | 0.6% |
| state adjacent | 40 | 63 | 4.0% |
Why TROP has fewer attacks
For the misaligned 2013–2024 pair, TROP lists 27,197 attacks against Fondapol’s 56,413 — about 48.2% as many. That ratio is illustrative, not a completeness score.
TROP is a news clipper. It usually requires a death, groups some multi-site days, and misses events that never reach English-language wires. In November 2014 the BBC found 664 attacks / 5,042 deaths where TROP had 284 / 2,515.
Fondapol extracts from GTD and ACLED with an Islamist perpetrator filter over 656 catalogued groups — including many low-casualty events TROP never writes up.
Why TROP has more deaths in some windows
2001–2012 (aligned): TROP 110,307 killed vs Fondapol 38,187. Peak TROP years 2006–2007 sit inside the Iraq civil war. GTD’s terrorism filter drops a large share of those events as insurgency.
2025 TROP deaths (14,014) are inflated by Sudan Janjaweed / RSF massacres TROP coded as Islamic terror. Fondapol’s boundary sheet excludes all civil-war deaths in Muslim-majority countries regardless of motive.
Post-cutoff TROP extension (2024-04-13–2026-08-24): 4,235 attacks / 26,083 killed. Strip Sudan and the killed figure falls to 19,621.
What this site does not do
The Fondapol headline stays frozen. TROP stays on its own sheet.
There is no combined “71,107 attacks / 276,024 deaths” figure on this site. That sum double-counts nothing in 1979–2000, undercounts relative to GTD in other years, and folds civil-war rows into a terrorism total.
“10× larger” claims are still unsupported. TROP’s entire post-9/11 ledger is 51,646 attacks — the same order of magnitude as Fondapol, not an order of magnitude above it. Larger numbers require collapsing categories (civil war + crime + state violence + historical conquests).
ACLED and UCDP are documented, not joined. A future event-level reconciliation would preserve ACLED revisions and deletions; inventing matches from country totals would be worse than leaving the join empty.
IEP Global Terrorism Index (all ideologies, recent)
Cross-check only. GTI is not Islamist-only, but the deadliest groups in 2024 were Islamist.
- Islamic State and affiliates: 1,805 deaths in 2024; active in 22 countries.
- JNIM: 1,022 deaths, Sahel.
- Tehrik-e-Taliban Pakistan: 558 deaths.
- Al-Shabaab: 400 deaths, mainly Somalia.
- Countries experiencing an attack rose from 58 to 66 in 2024.