Complex sentence: After long negotiations, known as the first Concert of the Hague, England sent a large fleet of 43 ships with more than 2,000 cannons, which did not directly participate but nevertheless sent a clear message to the Dutch fleet patrolling the Danish waters.
Split into simpler sentences: After long negotiations, known as the first Concert of the Hague, England sent a large fleet of 43 ships with more than 2,000 cannons. The force did not directly participate in fighting but nevertheless sent a clear message to the Dutch fleet patrolling the Danish waters.