From Introduction:
This Web Enhancement provides an overview of the range of international weapons and vehicles employed in the civil war in Spain. It also covers China due to the ongoing civil conflict there, as well as continued hostilities with Japan following the latter’s establishment of the illegitimate state of Manchukuo in Manchuria four years ago, its thwarted invasion of Shanghai at the same time, its invasion of Jehol province in 1933, and its current invasion of Suiyuan.
The Speeds in the vehicle table have been rounded for ease of use, though actual historical speeds are included in the descriptions of the aircraft for those desiring greater accuracy.