sentences:  Some of his troops went to reinforce the garrison of Drogheda and were caught in the ensuing Siege of Drogheda by Cromwell, 3–11 September 1649.In 1650 Lord Dillon successfully defended Athlone against a Parliamentarian army under Henry Ireton, skilfully holding him off by protracted parleys until Ireton decided to leave and rather reinforce Hardress Waller at the siege of Limerick.However, too much time had been lost and the parliamentarians took neither of these towns in the campaign of 1650.