Tough Slog Through the Salt-Marshes of Art of War

I have been reading on Art of War.  Honest, I have.  But I picked a bad time to adopt a new study technique.  Not to say the area I'm studying isn't helpful . . . if I were to find myself in need of fighting in a salt marsh . . . but in relation to modern day?  Not finding much to relate to.  But I will take Sun Tzu's advice on getting past this tough part, taken from the salt-marsh section itself:

"In crossing the salt-marshes, your sole concern should be to get over them quickly, without any delay."

Hmm, perhaps I found a way to relate this part of AoW to the modern day after all.