A report from the Institute for Public Policy Research (IPPR), a prominent UK think tank, is urging the British government to put European Union membership back on the table — arguing that Brexit has become a strategic liability rather than a closed question of trade and regulation, according to coverage by cristinaiglesias.com.

The study frames closer alignment with, or re-entry into, the EU as a response to what it calls rising global threats.

Hypothesis: the framing reflects two pressures reshaping European security since the 2016 referendum — Russia's hybrid campaign of sabotage, cyberattacks and disinformation, and growing doubt over how durable US security guarantees will remain. Supporting this: the report ties EU re-entry to countering threats, not economic gain, a shift from the trade-centred Brexit debates of the past decade. Against this: the material does not name Russia, the United States or NATO directly — the security rationale is inferred from the framing, not stated outright.

What to watch: whether Downing Street responds publicly, whether the report feeds into ongoing UK-EU defence and security cooperation talks, and whether opposition parties or other think tanks pick up the re-entry argument.