Some facts about FOREX
Forex Foreign Exchange Rates
A country has a trade deficit if it imports more than it exports. The opposite scenario is a trade surplus. It is considered a very big market mover.
Trade only when you expect the currency you are buying to increase in value relative to the currency you are selling.
In cases where a country does have control of its own currency, that control is exercised either by a central bank or by a Ministry of Finance.