Complex sentence: The first attempt from Brest, On 22 August, initially got off to a good start, about 1,000 French soldiers under General Humbert landed in the north-west of the country, at Kilcummin in County Mayo.
Split into simpler sentences: The first attempt, from Brest on 22 August, initially got off to a good start. Approximately 1,000 French soldiers under General Humbert landed in the north-west of the country, at Kilcummin in County Mayo.