WHAT DOES GOOGLE SAY ? Results 1 - 10 of about 507,000 for best infantry div in the world. (0.24 seconds) WHAT DOES WIKIPEDIA SAY? The 78th was formed specifically for Operation Torch </wiki/Operation_Torch> from regular British Army </wiki/British_Army> units, landing at Algiers </wiki/Algiers> in 1942. Thereafter it continued in Tunisia </wiki/Tunisia_Campaign>, gaining a formidable reputation, then through Sicily </wiki/Allied_invasion_of_Sicily>, up the length of Italy </wiki/Italian_Campaign_(World_War_II)>, arriving in Austria </wiki/Austria> for the end of the war. Units also saw action in Greece </wiki/Greece>, Palestine </wiki/Palestine>, and Egypt </wiki/Egypt>. Notable engagements include in Tunisia Longstop Hill, in Sicily the Battle of Centuripe and in Italy the assaults on the Viktor Line (Battle of Termoli) </wiki/Volturno_Line>, the Barbara Line </wiki/Barbara_Line> and the River Sangro (Gustav Line) </wiki/Winter_Line> as well as the Battle of Monte Cassino </wiki/Battle_of_Monte_Cassino>, the Gothic Line </wiki/Gothic_Line> and battle of Argenta gap </wiki/Spring_1945_offensive_in_Italy>. The 78 Div Flash on my Avatar (see left) came straight out of my Album and before that it sat on my epaulette. Ask any ex-army man which was the best Div and the answer will always be "My Div !"  
"Ask any ex-army man which was the best Div and the answer will always be "My Div !" How true and probably a fair answer!! regards Robert
Stumbled on this via another search, From a bloke most have heard of, Erwin Rommel. He knew a bit about Infantry warfare. "The Australian 9th Division, the finest Infantry Division I ever faced" From the 'Rommel Papers' I believe. John 6412
Not disagreeing but seeing that every time he faced the 9th he got beaten so perhaps Rommel was just making one of his many excuses ie I only got beaten because they were the best. But otherwise it would be unfair to all the rest who fought in NA to try to pick out a best, most of them fought with grit and determination and lots of them paid for their service with their lives. Can't do any more than that.
Good ones from every country. The American 442 "Go for Broke" regiment was certainly a good one. 442nd Infantry Regiment (United States) - Wikipedia