Complex sentence: At the same time, being impatient for the liberty to come sooner, and strongly convinced that it would come only with the help of the Bulgarian Army, they directed their efforts in activities for involving the country into war with the Ottoman Empire.
Split into simpler sentences: At the same time, being impatient for the liberty to come sooner, and strongly convinced that it would come only with the help of the Bulgarian Army. Later they directed their efforts in activities for involving the country into war with the Ottoman Empire.