 However, these difficulties could be overcome because there were and still are link between the mainland and Hong Kong, and Macau via land, and for the maritime traffic, the nationalist naval force could only cover the coastal region outside the effective range of the communist's land batteries and the communist could simply move a little deeper into the Pearl River to avoid the nationalist naval force.Though this did indeed increased the cost for the communist, the price tag for the operation of the naval task force performing this duty so far away from any support base was far greater comparatively speaking, because communist transportation was mostly by wooden junks that only required wind, while the modern nationalist navy required much more, such as fuel and maintenance supplies.Many nationalist strategist and naval commanders had pointed out this disadvantage and along with the geographically disadvantage (i.e.