The morning of 1 June was clear—good flying weather, in contrast to the bad weather that had hindered air operations on 30 and 31 May (there were only two-and-a-half good flying days in the whole operation.) Although Churchill had promised the French that the British would cover their escape, on the ground it was the French who held the line whilst the last remaining British soldiers were evacuated. Enduring concentrated German artillery fire and "Luftwaffe" strafing and bombs, the outnumbered French stood their ground. On 2 June (the day the last of the British units embarked onto the ships), the French began to fall back slowly, and by 3 June the Germans were about from Dunkirk. The night of 3 June was the last night of evacuations. At 10:20 on 4 June, the Germans hoisted the swastika over the docks from which so many British and French troops had escaped.