Early Vietnamese, 700BC - 938AD (I/49)

Add:

Stakes in river-bed or pits on land – Hidden Obstacle 0-24

Justification:

Among the evidence cited for the Medieval Vietnamese (III/59) revision

was that stakes planted in river-beds to trap and hole enemy ships at

low water are recorded in the first battle of Bach-Dang against the

Southern Han in 938 (Taylor pp.267-270). This actually comes in right

at the end of I/49.

Taylor, Keith Weller, The Birth of Vietnam (University of California

Press, 1983)

http://tabulaenovaeexercituum.pbwiki.com/Medieval+Vietnamese