Sure! I can provide you with a basic implementation of a strategy war game in a single HTML file using JavaScript. Please keep in mind that this is a simplified version and can be expanded upon to add more features and complexity based on your requirements. Here's the code:
In this game, you control an army represented by a pictogram. You need to defeat all the enemies, also represented by a pictogram, and protect your base, shown with another pictogram. The game keeps track of army count, enemy count, and base health.
To play the game, you can simply open the HTML file in a web browser on your smartphone and click the "Attack" button to initiate battles between your army and the enemy. The game ends if either your army count reaches zero or your base health reaches zero. When the game ends, you will be alerted with the appropriate message, and you can click the "OK" button on the alert to start a new game.
Feel free to modify the code and add more features to enhance the game.