COW on @factcheck.org discussing when a war is (and isn't) a "war". www.factcheck.org/2026/03/is-t...

(This also reminds us of the need to introduce some more consistent version-numbering rules, which we'll do in the not-too-distant future.)

We've introduced a minor update to COW's State System Membership Data, updating the coverage through 2024 and making available "blank" dyad-year and directed dyad-year data sets, in addition to the traditional state-year data. correlatesofwar.org/data-sets/st...

Announcing the barest of web redesigns at correlatesofwar.org. Look on our new logo, ye mighty, and despair.

New COW Arms Tech data just dropped.

Brand new COW data set. Check it out.

COW is pleased to announce the new Arms Technology Data Set, maintained by Jacob Gerner Hariri and Asger Mose Wingender, tracking arms tech adoption by state 1816-2023, from percussion lock muskets to armed drones! Available here: correlatesofwar.org/data-sets/ar...

And let’s be honest: managing multiple accounts is tough. Any stray comments here about Guided by Voices are probably @thescottwolford.bsky.social, and any about Govt Mule are probably @jeffcarter.bsky.social (Deleted the previous b/c we still don’t know how to do proper mentions on Bsky.)

Hey, folks. After a bit of a delay, COW has moved from the place formerly known as the bird site to BlueSky. Watch this space for updates from Co-Directors @jeffcarter.bsky.social and @thescottwolford.bsky.social, and, in even better news, a brand-new COW Data Set in a week or so.