Anglo-Polish alliance
In early 1939, British Foreign Secretary Lord Halifax received a proposal from Polish Ambassador to the United Kingdom Raczyński. The Polish government sought British aid in the event of an attack on Poland but insisted it would not be a mutual agreement. Józef Beck, the Polish Foreign Minister, remained deeply disturbed by any alliance with the Stalinistic Soviet Union. He feared that such a move might provoke the Hitler regime into seeing Nazi Germany as encircled. Chamberlain's administration had been attempting to create a four-way alliance involving France and the Soviet Union to contain Nazi Germany. This diplomatic effort collapsed under the weight of Polish suspicion regarding Soviet intentions. Beck proposed a secret agreement on consultation rather than a full military pact initially. The British response was cautious as they navigated the complex web of European alliances.
On the 31st of March 1939, Prime Minister Neville Chamberlain pledged support for Polish independence following the occupation of Czechoslovakia. This announcement came after Nazi Germany defied the Munich Agreement and seized control of Prague. The British Chiefs of Staff noted at the time that they could give no direct help by land, sea or air. Despite this limitation, the assurance extended to Greece and Romania on the 13th of April 1940. Fascist Italy had begun its invasion of Albania shortly before this expansion of guarantees. An Anglo-Polish communiqué issued on the 6th of April stated that both governments were in complete agreement on certain general principles. They agreed that the two countries were prepared to enter into an agreement of permanent and reciprocal character. Formal agreement would not be signed until the 25th of August according to the British Blue Book for 1939.
Two days after the Molotov, Ribbentrop Pact, Britain and Poland signed an agreement for mutual assistance on the 25th of August 1939. A secret protocol specified that the United Kingdom offered assistance only if attacked specifically by Germany. In cases of attack by other countries, parties were required only to consult together on measures to be taken in common. Both nations were bound not to enter agreements with any third countries threatening the other. Hitler postponed his planned invasion of Poland from the 26th of August until the 1st of September because of the pact's signing. On the night of 25, the 26th of August, a German sabotage group made an attack on the Jablunkov Pass railway station in Silesia. Polish troops repelled this group on the morning of the 26th of August. The incident warned the Polish Armed Forces that an invasion was imminent and caused them to accelerate mobilization efforts quietly.
Stalin refused to pledge Soviet support unless Britain and France first concluded a military alliance with the Soviet Union. Western negotiators in Moscow during August 1939 lacked urgency and conducted talks poorly. William Strang, an assistant under-secretary, represented British interests but held little authority. Central and Eastern European countries like Poland and Romania had hostile relations with the Soviet Union. They anticipated that Soviets wanted to control their territories despite Hitler escalating threats against them. Poland refused to allow Soviet troops to cross its border due to the risk they would never leave. Great Britain did not respond to Soviet requests for a defensive attack on Germany with the Soviet Union pledging one million troops. No deployment would be possible without Polish agreement which was not forthcoming. The Soviet Union then changed strategy and focused on expanding its sphere of influence in cooperation with Nazi Germany.
The Polish Navy remained in British waters since it had been sent there during Operation Peking in late August 1939. An agreement signed on the 5th of August 1940 allowed Polish sailors to wear their uniforms and have Polish commanding officers aboard even though ships were of British make. This revised agreement encompassed all Polish units by that date. Another agreement signed on the 5th of August 1940 stated that Polish Armed Forces shall be organized and employed under British Command. These forces remained subject to Polish military law and disciplinary ruling while being tried in Polish military courts. Only the Polish Air Force became an exception on the 11th of October 1940 when it was made subject to British discipline and laws. Military negotiations carried out in London ended up as a fiasco after lengthy talks. Polish military leaders failed to obtain promises beyond bombing German installations if attacks occurred in Poland.
On the 17th of September, the Soviet Union invaded Poland through the eastern border following the Molotov, Ribbentrop Pact's secret protocol. The Polish ambassador Edward Bernard Raczyński contacted the British Foreign Office regarding clause 1(b) concerning aggression by a European power. Halifax responded that obligations arising from the Anglo-Polish Agreement were restricted to Germany according to the first clause of the secret protocol. The United Kingdom should give Poland all support and assistance in its power if engaged in hostilities with a European Power due to aggression. However, this interpretation excluded the Soviet invasion from treaty protections despite the clear language about European powers. The alliance committed Britain for the first time in history to fight on behalf of a European country other than France or Belgium. Hitler demanded cession of Danzig and privileges for ethnic Germans within Poland before the war began.
Polish historian Paweł Wieczorkiewicz wrote that Polish leaders were unaware England and France were not ready for war. Publicist Stanisław Mackiewicz stated accepting London's guarantees was one of the most tragic dates in Polish history. Lord Halifax declared on the same day as the pledge that they did not think the guarantee would be binding. Alexander Cadogan wrote in his diary that their guarantee gave no help to Poland and called it cruel even cynical. A military loan of £8 million granted on the 2nd of August 1939 was less than Turkey received at the same time. Poland had asked for a loan of £60 million during negotiations. Józef Beck wrote in his memoirs that Sir John Simon and Frederick Leith-Ross negotiated purely in financial terms without considering wartime alliance rules. Edward Raczyński called the entire process a never-ending nightmare while Polish forces faced imminent destruction.
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Common questions
When did the Anglo-Polish alliance treaty get signed?
Britain and Poland signed an agreement for mutual assistance on the 25th of August 1939. This formal agreement followed a series of diplomatic exchanges starting in early 1939.
What specific conditions were included in the secret protocol of the Anglo-Polish alliance?
A secret protocol specified that the United Kingdom offered assistance only if attacked specifically by Germany. In cases of attack by other countries, parties were required only to consult together on measures to be taken in common.
Why did the Soviet Union not join the Anglo-Polish alliance during World War II?
Stalin refused to pledge Soviet support unless Britain and France first concluded a military alliance with the Soviet Union. Western negotiators in Moscow conducted talks poorly and lacked urgency while Poland refused to allow Soviet troops to cross its border.
How was the Polish Navy organized under British command after Operation Peking?
An agreement signed on the 5th of August 1940 allowed Polish sailors to wear their uniforms and have Polish commanding officers aboard even though ships were of British make. Another agreement signed on the 5th of August 1940 stated that Polish Armed Forces shall be organized and employed under British Command.
Did the Anglo-Polish alliance cover the Soviet invasion of Poland on the 17th of September?
Halifax responded that obligations arising from the Anglo-Polish Agreement were restricted to Germany according to the first clause of the secret protocol. This interpretation excluded the Soviet invasion from treaty protections despite the clear language about European powers.