Surviving an over-the-horizon amphibious approach

How can landing craft survive over-the-horizon amphibious operations?

They need some combination of self-defense, speed, stealth, or escort, with designs such as CB90, NEMO mortar craft, conventional LCUs, and LCACs exploring different tradeoffs.

Landing craft approaching from over the horizon need self-defense, speed, stealth, an escort, or a combination of those protections. CB90 fast craft and NEMO 120 mm mortar boats are offered as possible armed support. LCU and air-cushion LCAC approaches provide other ways to move troops and equipment toward shore. The answer leaves the balance unresolved, with the speed attainable by the chosen craft an important constraint.