Was Summit or Crosstrack created in the 20th century, involve strategy, and was created by Milton Bradley?
Summit (game) Summit is a Cold War board wargame introduced in 1961 by Milton Bradley as "The Top Level Game of Global Strategy", with an updated release in 1971. Each player chooses one of the major powers from the 1950s/1960s era and controlled their economic and military buildup during each turn, much like Risk.
Command HQ Command HQ is a real-time strategy world domination game. It was released in 1990 by MicroPlay software and was created by acclaimed designer Dan Bunten.