Fletcher, as part of Wellington's forces, chased Masséna to Sabugal where, after some skirmishing, on 2 April, Masséna was finally brought to action at the Battle of Sabugal; the first of a number of engagements as Wellington and Masséna competed for position along the Portuguese and Spanish border. After forcing Masséna to abandon Sabugal, Wellington turned his attention towards Almeida and Ciudad Rodrigo; two fortresses that guarded the northern approach to Portugal. Wellington had planned to capture both while Masséna's army was still in disarray but the loss of Badajoz to Marshall Soult on 11 March, which protected the south, compelled him to divide his force. Wellington sent a quarter of his troops to reinforce General Beresford's, with orders to re-take Badajoz, while his remaining force, which included Fletcher, would lay siege to Almeida. Masséna, now with a superior force, marched to relieve Almeida and Wellington, not wishing to fight under those conditions, withdrew to the town of Fuentes d'Onoro. The town changed hands a number of times during a battle that took place over three days (3–5 May), but ultimately remained under British control. Massénna's troops were neither able to reach the fort nor stay in the open and were thus forced to leave on 8 May. Wellington continued his siege and took possession of Almeida two days later.