Complex sentence: He traveled with them on the Polish troop-transport ship "Kościuszko" to Iraq and subsequently accompanied them to Egypt and to the Italian campaign, where he helped shift ammunition crates and became a celebrity with visiting Allied generals and statesmen.
Split into simpler sentences: He traveled with them on the Polish troop-transport ship "Kościuszko" to Iraq and subsequently accompanied them to Egypt and to the Italian campaign. There he helped shift ammunition crates and became a celebrity with visiting Allied generals and statesmen.