public static void AddSomeBattles()
        {
            ICollection <Battle> addedBattles = new List <Battle>()
            {
                new Battle
                {
                    Name        = "Battle of Sekigahara",
                    Description = "The Battle of Sekigahara was a decisive battle on October 21, 1600 " +
                                  "(Keichō 5, 15th day of the 9th month), that preceded the establishment of " +
                                  "the Tokugawa shogunate.",
                    IsBrutal  = true,
                    StartDate = new DateTime(1600, 10, 21),
                    EndDate   = new DateTime(1600, 10, 23),
                    BattleLog = new BattleLog
                    {
                        Name        = "BattleLog for battle of sekigahara",
                        BattleEvent = new List <BattleEvent>()
                        {
                            new BattleEvent
                            {
                                Description = "Description of battleEvent 1.1",
                                Summary     = "Summary of battleEvent 1.1",
                                Order       = 1
                            },
                            new BattleEvent
                            {
                                Description = "Description of battleEvent 1.2",
                                Summary     = "Summary of battleEvent 1.2",
                                Order       = 2
                            },
                            new BattleEvent
                            {
                                Description = "Description of battleEvent 1.3",
                                Summary     = "Summary of battleEvent 1.3",
                                Order       = 3
                            }
                        }
                    }
                },
                new Battle
                {
                    Name        = "Battle of Kizugawa",
                    Description = "The 1614 battle of the Kizugawa was one of a number " +
                                  "of battles surrounding the siege of Osaka, in which the " +
                                  "Tokugawa shogunate destroyed the Toyotomi clan, the last " +
                                  "major opposition to its control of Japan.",
                    IsBrutal  = false,
                    StartDate = new DateTime(1614, 11, 29),
                    EndDate   = new DateTime(1614, 11, 30),
                    BattleLog = new BattleLog
                    {
                        Name        = "BattleLog for Battle of Kizugawa",
                        BattleEvent = new List <BattleEvent>()
                        {
                            new BattleEvent
                            {
                                Description = "Description of battleEvent 2.1",
                                Summary     = "Summary of battleEvent 2.1",
                                Order       = 1
                            },
                            new BattleEvent
                            {
                                Description = "Description of battleEvent 2.2",
                                Summary     = "Summary of battleEvent 2.2",
                                Order       = 2
                            },
                            new BattleEvent
                            {
                                Description = "Description of battleEvent 2.3",
                                Summary     = "Summary of battleEvent 2.3",
                                Order       = 3
                            }
                        }
                    }
                },
                new Battle
                {
                    Name        = "Battle of Noryang",
                    Description = "The Battle of Noryang, the last major battle of the Japanese invasions of " +
                                  "Korea (1592–1598), was fought between the Japanese navy and the combined fleets " +
                                  "of the Joseon Kingdom and the Ming dynasty. It took place in the early morning of 16 " +
                                  "December (19 November in the Lunar calendar) 1598 and ended past dawn.",
                    IsBrutal  = true,
                    StartDate = new DateTime(1598, 12, 16),
                    EndDate   = new DateTime(1598, 12, 17),
                    BattleLog = new BattleLog
                    {
                        Name        = "BattleLog for Battle of Noryang",
                        BattleEvent = new List <BattleEvent>()
                        {
                            new BattleEvent
                            {
                                Description = "Description of battleEvent 3.1",
                                Summary     = "Summary of battleEvent 3.1",
                                Order       = 1
                            },
                            new BattleEvent
                            {
                                Description = "Description of battleEvent 3.2",
                                Summary     = "Summary of battleEvent 3.2",
                                Order       = 2
                            },
                            new BattleEvent
                            {
                                Description = "Description of battleEvent 3.3",
                                Summary     = "Summary of battleEvent 3.3",
                                Order       = 3
                            }
                        }
                    }
                },
                new Battle
                {
                    Name        = "Siege of Ōtsu",
                    Description = "The siege of Ōtsu took place in 1600, concurrent with the battle of Sekigahara. " +
                                  "Kyōgoku Takatsugu held Ōtsu castle for the Tokugawa, and commanded the garrison.",
                    IsBrutal  = true,
                    StartDate = new DateTime(1600, 6, 20),
                    EndDate   = new DateTime(1600, 10, 15),
                    BattleLog = new BattleLog
                    {
                        Name        = "BattleLog for siege of Ōtsu",
                        BattleEvent = new List <BattleEvent>()
                        {
                            new BattleEvent
                            {
                                Description = "Description of battleEvent 4.1",
                                Summary     = "Summary of battleEvent 4.1",
                                Order       = 1
                            },
                            new BattleEvent
                            {
                                Description = "Description of battleEvent 4.2",
                                Summary     = "Summary of battleEvent 4.2",
                                Order       = 2
                            },
                            new BattleEvent
                            {
                                Description = "Description of battleEvent 4.3",
                                Summary     = "Summary of battleEvent 4.3",
                                Order       = 3
                            }
                        }
                    }
                }
            };

            using (var context = new SamuraiContext())
            {
                context.Battles.AddRange(addedBattles);
                context.SaveChanges();
            }
        }