Complex sentence: In two months, the Western Desert Force advanced, occupying the Italian province of Cyrenaica and destroying the Italian Tenth Army, but the operation was halted in February 1941 to give priority to the Battle of Greece.
Split into simpler sentences: In two months, the Western Desert Force advanced, occupying the Italian province of Cyrenaica and destroying the Italian Tenth Army. The operation was halted in February 1941 to give priority to the Battle of Greece.