Complex sentence: Despite no official ties, Israel and the UAE have clandestine economic relations, and trade between the two countries, principally in the area of security, amounts to about $300 million per year.
Split into simpler sentences: Despite no official ties, Israel and the UAE have clandestine economic relations, and trade between the two countries, principally in the area of security. Trade between the two countries amounts to about $300 million per year.