American force organisation

[95th Rifleman]

I can find allot of information on American paper organisations, divisons, battalions etc, but can't find any info on what they actualy put into the field.

The British army takes the component units of a brigade and forms battlegroups, they then take these battlegroups and form smaller company level, combined arms combat teams. I have information on the british versions.

What I need is some examples of how the US army (and marines) actualy put forces into the field. What is a typical company and/or battalion sized US version of the British battlegroup/combat team?