Left Click enemy/unclaimed — Attack using current ratio
Bottom Slider — Set attack %
Click + Drag — Pan camera | Scroll — Zoom
Left-click own warship — Select it, then click ocean to redirect
Right-click own land — Build (City / Factory / Port / SAM)
Right-click ocean — Deploy Warship from nearest Port
Right-click enemy — Diplomacy / Nuke / Naval Invasion
Tip: Captured cities & factories become yours!