Complex sentence: Defense cooperation improved with Iraq, Iran, Jordan, Pakistan and considerably with China under the administration of President Ziaur Rahman and continued under India backed military dictator Hossain Mohammad Ershad in Bangladesh, which had grown more distant from its war ally, India.
Split into simpler sentences: Defense cooperation improved with Iraq, Iran, Jordan, Pakistan and considerably with China under the administration of President Ziaur Rahman. This strategic relation continued under military dictator Hossain Mohammad Ershad in Bangladesh, which had grown more distant from its war ally, India.