As Britain remembers the titanic struggle to repel the Nazi bombers 76 years ago, many people have posted message of thanks to the Polish fighters who died fighting Hitler - and suggested the attacks and criticism to which Polish people have been subjected since the UK's Brexit vote must stop.
The battle was a turning point in the Second World War, as the German army, supported by the Luftwaffe air force, launched a huge attack on London, intent on wiping out Britain's air defence capability.
Following Germany's invasion of Poland in September 1939, thousands of Poles had travelled to France, and huge numbers of pilots came over to Britain to join the defensive effort against Hitler's planes.
The Poles were trained in the aircraft used by the RAF, with British instructors teaching them brand-new skills as well as helping them learn English.
A total of 145 Polish airmen fought in the Battle of Britain, 79 airmen were in various RAF squadrons, with 32 in the No. 302 (Polish) Fighter Squadron and 34 in the No. 303 (Polish) Fighter Squadron.
It's believed the Polish airmen downed a total of 203 aircraft. However, 29 Poles lost their lives in the battle.
View the reaction on Twitter below