As a child born and raised in Mexico, I was limited in what I could get by way of toy soldiers. It was the early 1960's. Sets of flats (Revolutionary War, Romans, and Knights) ordered for $1.98 USD from the back of comic books had to be mailed to a US address and hand-carried by friends or family when they came to visit.
One of my first attempts at gaming with figures: on the tile floor of my bedroom I set up "units" of Revolutionary War soldiers. I would roll a die for casualties when two units faced each other in adjacent tiles. They would fight to annihilation. It was pretty crude.
When I left Mexico for boarding high school in Georgia, I bought some Airfix 1/72 figures and a bag of plastic vehicles. On a big cardboard I traced squares and tried to make some quasi-miniatures-game. It was not a success.
During college I discovered Donald Featherstone's War Games and Advanced War Games and adapted his rules for ACW and WW2. After college I discovered Wargamer's Digest and subscribed to it – even won a year's subscription in a contest, about the only thing I've ever won. I have quite a few issues still.
When I went to graduate school, with the models I already had, I ran games using the Angriff! rules. The Gene McCoy WW2 standard unit system meanwhile prepared me for my next step in WW2 wargaming, which happened as follows.
1988: I walk into Wargames West while on a visit home in Albuquerque. There is a boxed game called Command Decision. "What's this – no board? Oh, it's rules for miniatures. Looks better than Tractics or Angriff."
Since then, my WW2 operational-level rules of choice are Command Decision. I have followed them through all four iterations and I like CD4 (Test of Battle) the best. For tactical level I use Men Under Fire and for skirmish gaming, I'm looking into Arc of Fire. For ACW, I use Johnny Reb (I like version 2 better than 3). And for skirmish ACW, Brother Against Brother.
That's where I am at this point. I put on at least three games a year at the HMGS-East conventions -- so far Command Decision but maybe in the future Johnny Reb.
More recently, with all the great WW1 figures being made by HäT Industrie, I have gotten more involved in Mesopotamia, which first caught my imagination in 1970 with A. J. Barker's book *The B@st@rd War*. (Back in the 70's I had tried to modify Airfix figures to make Turks, Indians, Tommies in khaki shorts, etc. It was not a success, except for the Indians based on WW2 Japanese.)