IAMG retweeted
Quite enjoy getting this sort of alert.
An asteroid has just been discovered before it’ll hit Earth! It’ll enter the atmosphere just northwest of Australia.
(Don’t worry: it’s ~1m long, so it’ll just make a cool, brief fireball. We aren’t all about to die.)
IAMG retweeted
"Digging Below The Death Zone: The Underground War in Ukraine," my latest with @SapperGeologist discussing how the evolution of underground environments have exploded/advanced as the surface has become so lethal. A trend that many are still not ready for. mwi.westpoint.edu/digging-be…
IAMG retweeted
Great long-form podcast with @SpencerGuard and @asherdigs from @traysartech - spencerguard.substack.com/p/…
Three hours of #subterranean discussions... #innovation, history, and #defence.
#subterra #underground
IAMG retweeted
Replying to @masaccio60
Just incredible the amount of #subterranean #engineering that went into these sites.
@MilGeoscience @ProfPeterDoyle @MILENGCOE
IAMG retweeted
It was either a disingenuous question or a grossly ignorant one. @SecWar It is NOT a war crime to target bridges, power infrastructure, telecommunications networks, or other infrastructure if they constitute lawful military objectives. The law of armed conflict does not prohibit attacks simply because an object is also used by civilians. The legal question is whether the object makes an effective contribution to military action and whether the attack complies with military necessity, distinction, proportionality, and feasible precautions.
Bridges, electrical infrastructure, telecommunications systems, transportation networks, and other infrastructure have been targeted in many modern wars, including Bosnia, Kosovo, Iraq, Libya, and others. The U.S. military has long recognized that such infrastructure can constitute lawful military objectives when it contributes to an enemy's military operations or warfighting capacity.
That does not mean every strike against infrastructure is lawful. Each attack must be assessed based on the facts and the requirements of the law of armed conflict.
But to suggest that targeting bridges, electrical infrastructure, or telecommunications assets is inherently a war crime reflects either a gross misunderstanding of the law of war or an unprofessional misrepresentation of it.
REPORTER: "If the response is in hitting bridges, electrical infrastructure, how would that not be a war crime?”
@SECWAR "That's precisely the kind of disingenuous question that I'm used to from the media, impugning the motives of the folks on our side who are incredibly professional and incredibly effective!"
IAMG retweeted
Pictured;
A MEXE Shelter was a prefabricated sectional structure and covering design for observation, command, and regimental aid posts. A Smart design, but definitely 'of its time'
IAMG retweeted
Central London became the backdrop for a major NATO readiness Exercise ARRCADE STRIKE, led by HQ ARRC — a rare look at how allied forces train for real‑world scenarios.
Don’t miss Thursday’s drop: an exclusive interview with Exercise Director Brigadier Rob Alston plus a full carousel of behind-the-scenes images from inside the exercise.
#StrongerTogether #WeAreNato
IAMG retweeted
The first trailer for ‘Pressure’ is here, the film which tells the story of the most important weather forecast; the D-Day forecast.
Andrew Scott stars as Group Captain James Stagg – the Met Office meteorologist tasked with delivering the weather forecast and helping shape D-Day's plans.
In cinemas 9 September.
#pressuremovie @StudiocanalUK
IAMG retweeted
Less than 100 days to #ICMG26 at @WestPoint_USMA !
More info here - westpointaog.org/events/inte…
@SapperGeologist @NavalAcademy @USACEHQ @USGS @BritishArmy @USArmyReserve @BritGeoSurvey @GeolSoc
IAMG retweeted
Replying to @DefencePhoto
In short, some is the same, i.e. ophiolites (ancient seabed mixed with igneous rocks) , but the Zagros mountains (!) are largely recent sedimentary sequences.
In terms of an operating environment, it's incredibly complex.
macrostrat.org/map/#x=57.275… - good interactive #geology map
IAMG retweeted
In July 1917 the Italians dug and loaded two 2-tonne mines under Monte Rosso. Before they had a chance to blow them, Austrian tunnellers broke into the blast chambers and stole all the Italian explosives. The Austrians later used those explosives to blow up the Italian tunnels.
IAMG retweeted
"Russia is sending migrants through #underground #tunnels from Belarus into Europe as part of its hybrid #war on the West". via @Telegraph (sadly there's a pay wall) #crossbordertunnels - low tech, shallow #SbT
@RichemondBarak @MilGeoscience
telegraph.co.uk/world-news/2…
IAMG retweeted
Superb, eh? I’ll take that 😉
🚨 🚨 And here it is people… our 2026 list of speakers. We kick off straight away in Jan with the superb @masaccio60.
Remember to sign up in good time, and also consider joining the the REHS via instre.org/member-services/b…
@ReaController @Inst_RE @REMuseum
IAMG retweeted
During WW2, the comparative scale of many places was still beyond the scope of our imagination. Had to be one of the reasons why we went to war.
London: population in 1943? About 8.5m people.
Guadalcanal: number of men fighting for it?
100,000.
(60k US , 31.4k Japanese)
Replying to @newsofthewar
For a start, there's Guadalcanal. Too much to tell you, and we're always tempted to digress and actually talk about the war, not the NEWS of the war - because oh boy - is there a lot to cover now. 🗞️
linktr.ee/NewsOfTheWar
IAMG retweeted
Some brilliant work by the @HQARRC sustainment teams to get our HQ set-up in place.
Great to see the use of a broad range of #infrastructure to increase #protection and #resilience.
@SpencerGuard @Stu_Lyle @JaysonGeroux
This October, HQ ARRC will join NATO Allies for Exercise Avenger Triad 25, a key U.S.-led command post exercise held alongside NATO’s Steadfast Duel.
Together, these exercises focus on refining NATO’s defence plans and integrating command systems.
Troops from across Europe and the US will take part in simulated large-scale combat operations, building on lessons learned from previous exercises to strengthen NATO’s collective readiness.
#WeAreNATO
IAMG retweeted
60% of Hamas tunnels left undestroyed - there's no silver bullet to solving this issue... check out @RichemondBarak for more insight on this most wicked of problems!
jpost.com/israel-news/articl…
@MilGeoscience
IAMG retweeted
If you want in-depth insight into the Hamas #tunnels of #Gaza, check out @SpencerGuard latest podcast. Loads of details after numerous visits.
mwi.westpoint.edu/urban-warf…
@MilGeoscience
IAMG retweeted
A potential CBT? One to watch…
@RichemondBarak @MilGeoscience
IAMG retweeted
Cement and therefore #concrete... Quite a worrying state of affairs with impacts to house building and some of the mega #infrastructure projects underway or planned for the future. #resilience #strategic #carboncurse
bbc.co.uk/news/articles/clyr…
IAMG retweeted
Interesting post here, another example of Russian exploitation of #SubT #infrastructure. Worth noting the use of the trolley to facilitate equipment and personnel transfer.
@RichemondBarak @Proud_Sappers @MilGeoscience @urbanwarfareins
Thanks @Stu_Lyle for flagging this one 👍🏻































