I use a different method - after headlines are resolved and discarded, the cards played during action rounds are placed beside the board in two rows, the upper one for the USSR player, and the lower one for the US.
It's easy to see hom many action rounds were taken (and remain) by counting the number of cards in each row.
All cards are discarded at the end of the turn (cards that should be removed from the game are placed "tapped" and are removed at that time).
It's easy to see hom many action rounds were taken (and remain) by counting the number of cards in each row.
All cards are discarded at the end of the turn (cards that should be removed from the game are placed "tapped" and are removed at that time).