Favorite strategies

So I'm relatively new to this, and I'm still trying to find a perfect strategy for me. Without the overall strategies (relentless attack, naval commander, etc), what is your course of action for when you play? Btw I prefer the United States, so if anyone has any helpful strategies about the US, please comment. Thanks a bunch. See you on the battlefield.

Sky menace is a good strategy for world 50k as well as PD,also Rentless Attack can be usefull

Back when I played world games as USA, I would use Sky Menace, Master of Stealth, Blitzkrieg, and rarely Naval Commander. These strategies are good at crossing oceans quickly and effectively, which is something you must do as USA.