This soldier is typical of the US Infantry in Korea. He carries a Garand M1 rifle with knife bayonet, 2 Mark 2 fragmentation grenades, an entrenching tool, binoculars and extra ammo. 

His uniform is plain jungle green (camouflage uniforms had not become popular yet) with the brown boots that were above ankle in size. these were the first army boots to do away with the need for gaiters or puttees. 

Now considered standard and necessary in Korea they were a bit of a novelty. Australians still wore gaiters.

Malaya; Borneo; Malaysia. 1948/1967 Australians and Gurkhas have worked together for many years. 

He wears tropical green shirt and trousers, a bush hat, 1944 British webbing and rubber and canvas jungle boots.

This bloke carries a M16 Armalite rifle and would have a bayonet, a machete and his famed kukri knife. 

They were (and are still) feared jungle fighters, ready and willing to get up close and very personal with the CTs.

This Private first class (Pfc) of the United States Marine Corps (USMC) wears the standard jungle green fatigues, tropical pattern boots made of a combination of leather and nylon.

Over his shoulder he carries the standard issue General Purpose Machine Gun, the 7.62mm GPMG M60.As the infantry soldiers were called 'grunts' and the GPMG M60 was called 'the pig' this photo could be called 

"A Grunt with a pig"

This soldier is in the Army of the Republic of Vietnam, our 'allies' in the war in SVN. He kitted out in US designed, Korean made, camouflage uniform called 'tiger stripes'. He carries a Colt AR-15 (M16A1) 5.56mm 'Armalite' rifle with 30 round magazine. 

He is also armed with 2 M26 fragmentation grenades and a pistol. He has a nylon mesh waist-coat (probably US Special Forces) and a bush hat with his badges of rank (2 plum blossoms) on it.

This 'Kiwi' (New Zealand) soldier was one of those who served in the ANZAC Battalions in South Viet Nam. These units came from an amalgamation of 1 or 2  Rifle Companies from the Royal New Zealand Infantry Regiment (RNZIR) into an Australian infantry battalion from the Royal Australian Regiment, (RAR) for a tour of duty in SVN.

This soldier wears the standard jungle greens and webbing. He wears an Aussie bush hat and the black infantry 'boots-gp' or general purpose boots. He carries the Australian made copy of the 7.62mm FN rifle known as the  L1A1 Self Loading Rifle (SLR) with 20 round magazine