What are the principles behind foreign loans?

Foreign loans against the domestic bank loans or even stock markets are based on the government policy. For example, if the exchange rate is fixed, and the interest rate outside is lower than the domestic rate, foreign loans will increase which in turn should have caused the exchange rate to appreciate.But the fixed system prevents it. This was the main cause of the crisis in Asia in 1997. If the country is in the floating rate system,or managed system based on the basket of hard currencies, it will depend on the debts/GDP ratio of the country which the borrowing will be controlled by law,not to succeed the given ratio.Even when it is allowed by law to issue international bonds,it will be subject to the agency rating if it can sell by the given yield rate.

The principle of setting companies free of taxes and keeping the middle class so poor that they cannot buy bonds simultaneously with making uncalled for wars across the globe to raise government expenditure which shall have to be borne out of Foreign Loans made available due to fear of 5000 nukes.