International Trade is something that affects every individual in every country, daily
What are problems with international trade?
1. Distance 
2. Different languages
3. Difficult in transportation and communication
4. Risk in transit
5. Lack of information about foreign businessmen
6. Import and export restriction
7. Documentation
8. Study of foreign markets
9. Frequent market changes
10.  Investment for long period
12. Intense competition

Why is international trade an issue? 
Trade issues dominate and continue of the international trade like the global market, sweatshops, child labor, trade deficits, the euro, sanctions, tariffs, embargoes. If international trade doesn't exist, then many countries might take that reason to anticipate each others. People'll live in poor life ( not develop).

Some important benefits of International Trade

1.Enhances the domestic competitiveness

2.Takes advantage of international trade technology

3.Increase sales and profits

4.Extend sales potential of the existing products

5.Maintain cost competitiveness in your domestic market

6.Enhance potential for expansion of your business

7.Gains a global market share

8.Reduce dependence on existing markets

9.Stabilize seasonal market fluctuations 

Some bad part of International Trade

1.Lost jobs

2.Reduced Wages

3.Higher Foreign Debt

3.Rising Global Poverty

I think that no solutions for trade imbalances, competitive advantages, embargoes and tariffs.

Links : http://www.preservearticles.com/2012022923898/what-are-the-problems-or-difficulties-in-international-trade.html

http://www.economywatch.com/international-trade/benefit.html

http://smallbusiness.chron.com/negative-effects-trade-5221.html