My knowledge in interbellic period of Romania is not at all so profound as to explain Romania's decisions.
My opinion, for what it's worth, is that there was a real jew problem around here, the youth was drawn to the far-right of the political spectre, and there was resentment against Britain lasting from the Treaty of Verdun and the destruction of the oil fields of 1916.
Poland's experience of Sep 1939 further showed that the western powers were not keen to take on the nazy army.
Thus, war was a necessary step, probably further strngthened by Britain's manipulative stance.
I guess a war with Russia in 1940 would have been much better for Romania, overall. Before labeling me as "insane", here me out:
- Russia's army at the time, though large, was poorly trained and equiped, and lacked good officers.
- Romania's army could wage war along a number of rivers, easily defendable.
- If the worst would have happened, and Russia's army would have captured Bassarabia, at least the fight would have permitted the 3 million Romanian inhabitants 1-2 weeks to refuggee themselves over the river Prut, and into present day Romania.
By not doing so, The inhabitants only had 2 days to flee. 500.000-1.000.000 were deported. Tens of thousands were tortured and killed in Bassarabia by jews, when the high officials and military retreated hastily over the Prut.
Unfortunately, this is hardly known in the west. I'm sure it comes as a surprise to you, but we have a number of primary documents which prove this.
- Finaly, if RUssia would have used the battle for Bassarabia as a pretext for invading ROmania in 1940, the German army would have attacked in force, in order to safeguard the precious oil fields.
With the German war machine as it was in the summer of 1940, the red army would have been devastated and forced to retreat in disaray.
In effect, Barbarossa would have come 1 year earlier... No US in the war to ship tanks, planes, steel, trucks and food. No Lend-Lease act. No intel on Japanese stand off in the east. And no losses and no delays in the Balkans for the Germans...
As I said, my opinions,
P.S.: It's surprising to me how much you know about Romania's modern history. How come?