Polish-German border, September 1st, 1939
With tacit Soviet cooperation secured, Germany had not wasted more than three days and hadn't even bothered with a proper declaration of war before throwing close to 2 million men in 66 infantry divisions against Poland On the Polish side, army mobilization was still underway. 27 infantry divisions and 11 cavalry brigades had already been called up ahead of the general mobilization order in August 29 and a total of 352 infantry battalions out of a projected 455 had managed to mobilize by September 1st. Mobilization would continue during the fighting with the Poles managing to mobilize about 1,072,000 men by September 14th [1]. The invaders material superiority is even more overwhelming with 2,750 German tanks facing 228 Polish ones while in the air 669 Polish aircraft have to take on over 2,300 Luftwaffe planes which are also technologically superior, the only truly modern aircraft on the Polish side are 50 PZL P.50 fighters and 123 PZL.37 bombers. [2]. But the odds didn't matter. Poland was going to fight. To the last man and the last bullet if need be but would not surrender.
London and Paris, September 3rd, 1939
Britain and France had failed to immediately declare war when Germany had invaded Poland. Instead they had issued an ultimatum demanding a stop to the invasion. With it expiring without answer it was time for the guns as both countries declared war against Germany. Neither country was particularly enthusiastic about going to war, but both where determined and confident. Germany had been defeated in 1918. Now the British and French empires were even stronger relative to it than 20 years earlier. It might not be a fast war but sooner rather than later the allies should have crushing material superiority over Germany and end its threat for good this time.
South Africa September 5th, 1939
Somewhat to the British shock the South African government, of JBM Hertzog had tried to declare her neutrality in the war despite being obliged to follow London's lead normally. But Hertzog's own government had deserted him. By September 4th after furious parliamentary debate Hertzog had been forced to resign and Jan Smuts had formed a new government. Smut's had not lost time to declare war on Germany. But South Africa's internal troubles would just start as member if the strongly pro-German
Ossewabrandwag group would refuse to serve, attack servicemen in uniform and even sabotage infrastructure.
Athens, September 9th, 1939
The Greek supreme war council was, again, in full session. The Greek government was understandably anything but happy with the start of the war in Europe. Greece had proclaimed her neutrality but the Greek merchant marine had come under German attack already from the first day of the war, German submarines and surface raiders were treating Greek ships no different than British ones, while not everything was good with the western allies, the Greek government had already been given notice that delivery of the Spitfire and Blenheim bombers it had on order had to be frozen indefinitely, understandable but highly problematic, little news were coming from the French offensive begun two days ago in the Saar, while the Germans seemed to be advancing even faster than expected in Poland, Pangalos had already summoned colonel
Konstantinos Davakis, the army's foremost expert in armoured warfare to the council. At least Italy had not joined the war. Yet at least...
Dublin, September 10th, 1939
Back in April 1938 Michael Collins, had secured an agreement with Britain to return the Irish treaty ports to Ireland on the unofficial understanding that should the need arise facilities in Ireland would be made available to British forces, after all Ireland was part of the Commonwealth. Then he had called a snap election as soon as he was back from London, easily securing over half the popular vote and 77 out of 138 seats in the Dail. But now war had come and what Ireland should do. Deciding whether Ireland would follow the rest of the Commonwealth to war was an easy decision, this was not Ireland's war, over the centuries too many Irishmen had died in Britain's imperial wars for Collins taste, both for and against it, thus when the vote had come in front of the Dail it had been overwhelmingly in favour of declaring neutrality. But even if it was not written in the treaty of the previous year, Collins had given his word that should the need arise some support would be given Britain and Collins had always been a man of his word. Ireland might be neutral. But her neutrality would be heavily tilting towards the allies...
Saar, September 18th, 1939
The French offensive drew to a halt. In twelve days the French army had advanced 8km in the face of resistance that could be best described as anemic...
Soviet-Polish border, September 20th, 1939
800,000 Soviet troops backed by 4,700 tanks and 3,300 aircraft attacked over the border, while the Soviet Union announced to the world that it considered Poland to had ceased to exist. Polish border troops fought back as best as they could against the new enemy but the Polish army was already crumbling under the German attack. Now facing also the Soviets any hopes of prolonged resistance in the so called "Romanian bridgehead" the Poles had planned for before the war were gone. The only question now was how many Polish soldiers would manage to escape Poland to fight another day...
Warsaw, September 25th, 1939
Sixty Dornier Do-19s led an attack of 1,090 aircraft against the Polish capital, the Germans used everything down to Ju-52 transport planes indiscriminately dropping nearly 900 tons of bombs and inflicting thousands of civilian casualties. The huge four engined bombers had been kept out of combat so far but by now the Polish air force was mostly gone and Warsaw's air defences severely understrength from weeks of fighting leaving the Germans to bomb the city almost at will. Still the actual military results were questionable. Propaganda results were anything but questionable though, as the western press would write that Polish casualties from the bombing run in the tens of thousands. But Warsaw would not surrender for 6 more days.
Trieste, September 28th, 1939
Vittorio Veneto, was delivered to the Regia Marina. Some final fitting out before joining the fleet was still required but the Italians were in a hurry. Italy so far had kept neutral in the new war. But this could change at any moment, the duce was most interested it seeing the unfortunate state of affairs that was peace change sooner rather than later after all. At slightly over 44,000t normal displacement and armed with 9 16in guns the new ship was easily the most powerful battleship in the world, only her sister Littorio, itself also fitting out was a match to it. The French counterpart to the Italian ships, Richelieu would need till the end of the year to complete anf her sister Jean Bart was due to complete in February 1941. Of course by the end of 1940 one could also expect the two German battleships of the Bismarck class and at least the first of the three King George V class battleships to enter service. But Italian propagandists could conveniently claim that both the British and the German ships had "merely" 15in guns, the two Ansons building for the Royal Navy were still away out and no-one knew what was going to happen to the new battleships the Germans had ordered just before the way. As no-one knew what was going on in Japan and the Soviet Union. The Japanese were building... something. And the Soviets simply refused to give any information publicly...
Poland, October 9th, 1939
The last units of operations groups Polesie, were forced to surrender to the Germans, Warsaw had already fallen from October 1st the same day the invading German and Soviet armies had met each other. Poland had fought for over 5 weeks before being destroyed. But her destruction had not come entirely cheaply to the Wehrmacht. Over 51,000 men had been lost along with 385 aircraft and 312 tanks. [3] Hundreds more aircraft and tanks had been heavily damaged and many would likely never be returned to service. From the Polish armed forces some 40,000 had been interned in Hungary and another 72,000 in Romania. [4] Hungary, traditionally friendly to Poland, was already letting the interned Poles quietly slip into Yugoslavia from were they could either take trains through Italy to France or move down to Piraeus and take from there a ship to Marseilles. In Romania the elected government under Ion Bratianu, while proclaiming its neutrality had been rather more openly supportive of its Polish allies, German pressure had been met by polite reassurances that "Romanian oil exports to Germany would continue normally" while the Polish gold had left Constanta for Constantinople under the discreet escort of Greek destroyers, Britain and France wanted to avoid using their own warships in the Black Sea lest they further alienate the Soviets and increasing numbers of Poles found their own way in the mostly Greek passenger ships of the Constantinople-Constanta route...
[1] In OTL it was 316 battalions by September 1st and ~1 million men. So the additional day mobilizing gains Poland about 70,000 men.
[2] That's 50 P.50s and 31 PZL.37s in addition to OTL, which means the Poles have TTL a modern fighter if in rather limited numbers. Wever's boys are in for a few surprises...
[3] In comparison to 285 and 236 in OTL
[4] Roughly 42,000 Poles more have escaped TTL into Romania.