The correct answer is Author Zimmermann.
China's increased conflict with the soviet union :)
They attacked only at night under the cover of darkness. Their tactic was to engage in small skirmishes in the South Vietnamese countryside where they were familiar with the area. They used guerilla warfare and had their trip wires and pits with sharpened bamboo stakes to demobilize the enemy. After the battle, they escaped back to the jungle.
<em>Competition, is when two allies (or just random people too I guess) become rivals in order to complete a certain task first. Normally this would mean that a group of rivals are competing to earn a certain title, for example best at something, or just to make themselves look better.</em>
<em>It effect business because this creates tension often, meaning that the 2 rivaled sides are not exactly the most friendly to one another.</em>
<em>Hope this helps and have a nice day.</em>
<em>-R3TR0 Z3R0</em>