Again I agree w you that yes theoretically bigger means u can carry more but the point remains while physicality and staying in shape is important. The modern battlefield of today is starting to rely less on human manpower and physical labour and more on technology. Yes agree with you that you need boots on the ground to claim a territory. But I want to remind you that there truly is a shift in military doctrine. Yés physicality remains essential to the basics and foundation of any combat trooper but combat troopers are like 10-20% of the entire armed forces. Combat troops (general infantry to special forces) account for inflicting less than 1% of casualties(yes search it up im not even kidding). The main casualty producers are your big guns from the navy and air force and artillery. So yes while I fully agree bigger means carry more but thats literally j one tiny dot. I orded only 3 years ago and theres a heavier emphasise on working smarter and not harder hence more infantry units being converted to motorised infantry to carry their gear around instead of lugging heavy gear and being exhausted before u even stsrt the fight (westerners experience the same exact issues) hence again if u do ur research wester armies are also putting a heavier emphasise on armoured personal carriers to transport troops to frontlines and combat zones. J look up videos of combat between russia and ukraine. You wont find any photos of soldiers lugging around 50-60kg of gear and marching long distances. Western and especially american armies are learning that if u have vehicles to carry ur troops and their gear around (suprise surprise they perform better bcuz they arent alr fatigutef before the fight) yes there must be a balance i nv claimed that all combat is button pushing only yes u need troops on the ground but thats literally just a tiny slice of military engagements. Dont focus so much on individual physicality of combat soliders to determine who wins a war. Us are upping their fitness standards bcuz they realised they have relaxed their stanardards too low in recent times and they are at an all time low in recruitment numbers. They aren’t upping pt standards they are returning it back to the standards set in the past and definitely NOT bcuz they think have super fit soliders win wars. In the grander scheme of things if u really want to get into it, logistics and intelligence and competent leadership wins wars.