In this crisis(危机) I think I may be pardoned if I do not address the House at any length today, and I hope that any of my friends and colleagues or former colleagues who are affected by the political reconstruction will make all allowances for any lack of ceremony (礼仪)with which it has been necessary to act. I say to the House as I said to Ministers who have joined this government, I have nothing to offer but blood, toil(辛苦), sweat and tears. We have before us an ordeal(考验) of the most grievous (极大的)kind. We have before us many, many months of struggle and suffering. You ask, what is our policy? I say is to wage (开展)war by land, sea and air. War with all our might and with all the strength God has given us, and to wage war against a monstrous tyranny(残暴) never surpassed (超越)in the dark and lamentable (可恶的)catalogue of human crime. That is our policy. You ask, what is our aim? I can answer in one word. It is victory. Victory at all costs--victory in spite of all terrors--victory, however long and hard the road may be, for without victory there is no survival. Let that be realized. No survival for the British Empire, no survival for all that the British Empire has stood for, no survival for the urge, the impulse (动力)of the ages, that mankind shall move forward toward his goal. I take up my task in buoyancy(快乐) and hope. I feel sure that our cause will not be suffered to fail among men. I feel entitled(有权利的)at this juncture, at this time, to claim the aid of all and to say, 'come then, let us go forward together with our united strength'. The first paragraph tells mainly about ______.