UPDATE — this extends our earlier coverage: The Shadow War Widens While the West's Nerve Frays

MI5 director general Ken McCallum said this week that Britain's Security Service is now confronting more state-backed threats than at any point during the Cold War, as Russia and Iran intensify hybrid campaigns against the UK and increasingly turn to artificial intelligence to do it, according to the BBC and Reuters.

After a wave of diplomatic expulsions stripped Russia of many intelligence officers in Europe, Moscow has turned to hiring criminals as proxies to carry out operations in their place, MI5 warned, according to UNITED24 Media. Even so, nearly 400 Russian intelligence operatives remain active across the continent, Ukrainian intelligence told LIGA.net.

German police detained two people over a fire linked to Starlink infrastructure in Poland, DW reported.

Russia summoned Belgium's ambassador after Brussels accused Moscow of hybrid warfare and sabotage, per Demócrata, while EU officials weigh a new European Security Council as an institutional answer, Euronews reported.

NATO's new strategy, dubbed "block, blunt, break," sets out how members would respond to Russian aggression, Al Jazeera reported; officials said they would "break" Russian forces and destroy "anything and everything" if attacked, per Fox News.

Hypothesis: the proxy pivot and NATO's explicit war-gaming are two faces of one escalation — Moscow lowering its own exposure as the West raises its declared threshold for response. Supporting this: McCallum's warning, the Starlink arrests and NATO's plan all surfaced within the same fortnight. Against it: NATO's framework addresses conventional attack, not the deniable sabotage MI5 describes — the two tracks may simply be running in parallel. Ukrainian military intelligence has separately warned Russia is preparing for possible war with Europe by 2045, per RBC-Ukraine — a horizon that leaves years for the proxy war to escalate first.

What to watch: whether the EU's proposed Security Council gains real enforcement power, and whether more Starlink-style arrests surface elsewhere in NATO territory.